View source for Cadillac Eldorado

{{short description|American personal luxury car}}
{{Other uses|El Dorado (disambiguation)}}
{{Infobox automobile
| image        = 1963 Cadillac Eldorado convertible, front 5.19.19.jpg
| caption      = 1963 Cadillac Eldorado Convertible
| name         = Cadillac Eldorado
| manufacturer = [[Cadillac]]
| production   = 1952–2002
| layout       = [[Front-engine, rear-wheel-drive layout|Front-engine, rear-wheel-drive]] (1953–1966)<br />[[Front-engine, front-wheel-drive layout|Front-engine, front-wheel-drive]] (1967–2002)
| aka          = Cadillac Fleetwood Eldorado
| class        = [[Personal luxury car]]
| successor    = [[Cadillac CTS]] coupe
}}

The '''Cadillac Eldorado''' is a [[luxury car]] manufactured and marketed by the [[Cadillac Motor Car Division]] of [[General Motors]] from 1952 until 2002, over twelve generations.

The Eldorado was at or near the top of the Cadillac product line. The original 1953 Eldorado convertible and the [[Eldorado Brougham]] models of 1957–1960 had distinct bodyshells<ref name=CCbrougham>{{cite web|url=https://www.conceptcarz.com/vehicle/z11289/cadillac-eldorado-brougham-concept.aspx|last=McMullen|first=Jeremy|title=1956 Cadillac Eldorado Brougham Concept|publisher=Conceptcarz.com|access-date=4 June 2019}}</ref> and were the most expensive models offered by Cadillac during those years. The Eldorado was never less than second in price after the [[Cadillac Series 75]] limousine until 1966.<ref name="Kowalke 1997">{{cite book|last=Kowalke|first=Ron|title=Standard Catalog of American Cars 1946-1975|year=1997|publisher=Krause publications|isbn=0-87341-521-3|url-access=registration|url=https://archive.org/details/standardcatalogo00beve}}</ref><ref name="Gunnell 2005">{{cite book|last=Gunnell|first=John|title=Standard Catalog of Cadillac 1903–2005|year=2005|publisher=Krause publications|isbn=0873492897}}</ref> Beginning in 1967, the Eldorado retained its premium position in the Cadillac price structure, but was manufactured in high volumes on a unique, two-door [[personal luxury car]] platform.<ref name=CCbrougham/><ref name=Hemmings67>{{cite web|url=https://www.hemmings.com/blog/2016/10/06/cadillacs-first-front-wheel-drive-production-car-the-1967-eldorado-turns-50/|title=Cadillac's first front-wheel drive production car, the 1967 Eldorado, turns 50|last=Ernst|first=Kurt|date=6 October 2016|publisher=Hemmings Motor News|access-date=4 June 2019}}</ref>

The Eldorado carried the [[Cadillac Fleetwood|Fleetwood]] designation from 1965 through 1972, and was seen as a modern revival of the pre-war [[Cadillac V-12]] and [[Cadillac V-16]] roadsters and convertibles.

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==Name==
The [[Car model|nameplate]] ''[[wikt:Eldorado|Eldorado]]'' is a contraction of two Spanish words that translate as "the gilded (i.e., golden) one"—and also refers to [[El Dorado]], the mythical Colombian "Lost City of Gold" that fascinated Spanish [[conquistadors|explorers]].<ref name="name">{{cite news
  | title = DRIVING; The Eldorado Sips Its Last Tanker of Gas
  | work = The New York Times
 | date = 10 May 2002
  | url = https://www.nytimes.com/2002/05/10/travel/driving-the-eldorado-sips-its-last-tanker-of-gas.html| last1 = Patton
 | first1 = Phil
 }}</ref>

Chosen in an internal competition for a 1952 [[concept vehicle]] celebrating Cadillac's [[golden anniversary]], the name ''Eldorado'' was<ref name="ref5">{{cite news
  | title = 1953 Cadillac Eldorado
  | publisher = TopSpeed.com
  | url = https://www.topspeed.com/cars/cadillac/1953-cadillac-eldorado/}}</ref> subsequently adopted for a limited-edition convertible for model year 1953.

Cadillac began using the nameplates "Eldorado [[Seville]]", after the city in southern Spain, and "Eldorado [[Biarritz]]" after the luxury seaside resort in southern France, to distinguish between the [[hardtop]] and [[convertible (car)|convertible]] models (respectively) while both were offered, from 1956 through 1960 inclusively. The "Seville" name was dropped when the hardtop was initially discontinued (1961), but the Biarritz name continued through 1964. Beginning in 1965, the Eldorado became the '[[Cadillac Fleetwood|Fleetwood Eldorado]]'. 'Biarritz' returned as an up level trim package for the Eldorado for 1976 until 1991. {{Clear}}

==First generation (1953)==
{{Infobox automobile
| image       = 1953 Eldorado (14245524610).jpg
| caption     = 1953 Cadillac Eldorado
| name        = First generation
| model_years = 1953
| assembly    = [[Detroit, Michigan]], U.S.
| platform    = [[GM C platform (RWD)|C-body]]
| layout      = [[FR layout]]
| body_style   = 2-door [[convertible (car)|convertible]]
| engine       = {{convert|331|cuin|L|1|abbr=on}} [[Cadillac V8 engine#331|Cadillac OHV V8]]
| transmission = 4-speed [[Hydra-Matic]]
| wheelbase    = {{convert|126.0|in|mm|0|abbr=on}}
| length       = {{convert|220.8|in|mm|0|abbr=on}}
| width        = {{convert|80.1|in|mm|0|abbr=on}}
| height       = {{convert|58.5|in|mm|0|abbr=on}}
| weight       = {{convert|5000|lb|kg|abbr=on}}
| designer     = [[Harley Earl]]
| related      = [[Buick Skylark#1953–1954|Buick Roadmaster Skylark]]<br />[[Oldsmobile Starfire#Concept car (1953)|Oldsmobile 98 Fiesta]]
}}
The [[Cadillac Series 62]] Eldorado joined the [[Oldsmobile Starfire#Concept car (1953)|Oldsmobile 98 Fiesta]], and [[Buick Skylark#1953–1954|Buick Roadmaster Skylark]] as top-of-the-line, limited-production specialty convertibles introduced in 1953 by [[General Motors]] to promote its design leadership. A special-bodied, low-production convertible (532 units in total), it was the production version of the 1952 El Dorado "Golden Anniversary" [[concept car]].  Along with borrowing [[Dagmar bumpers|bumper bullets]] from the 1951 [[Le Sabre concept car|GM Le Sabre]] show car,<ref>Flory,  J. "Kelly", Jr. ''American Cars 1946-1959'' (Jefferson, NC:  McFarland & Coy, 2008), p.1021.</ref> it featured a full assortment of deluxe accessories and introduced the wraparound windshield<ref>{{cite web |url=https://oldcarbrochures.org/United%20States/Cadillac/1953-Cadillac/1953-Cadillac-Eldorado-Folder/slides/1953_Cadillac_Eldorado_Folder-02-03.html |title=Presenting: the Cadillac Eldorado | type = sales folder | pages = 2-3 |publisher= Cadillac Motor Division, General Motors Corporation | date = 1952 | via = Oldcarbrochures.org |archiveurl = https://web.archive.org/web/20230806155445/https://oldcarbrochures.org/United%20States/Cadillac/1953-Cadillac/1953-Cadillac-Eldorado-Folder/slides/1953_Cadillac_Eldorado_Folder-02-03.html | archivedate=2023-08-06 }}</ref> and a cut-down [[beltline (automotive)|beltline]] from Cadillac's standard production models.

The expansive frontal glass and distinctive dip in the sheet metal at the bottom of the side windows (featured on one or both of GM's other 1953 specialty convertibles) were especially beloved by [[General Motors]]' styling chief [[Harley Earl]] and subsequently widely copied by other marques. Available in four unique colors; Aztec Red, Alpine White, Azure Blue and Artisan [[Ochre]].<ref name="Flory, Jr. 2008" /> Convertible tops were available in either black or white [[Acrylic fiber|Orlon]]. AC was an option at US$620 (${{formatnum:{{Inflation|US|620|1953}}}} in {{Inflation-year|US}} dollars {{inflation-fn|US}}),<ref>{{cite web|url=http://www.oldcarbrochures.org/NA/Cadillac/1953-Cadillac/1953-Cadillac-Accessories-Booklet/1953-Cadillac-Accessories-03|title=1953 Cadillac Accessories-03|work=oldcarbrochures.org|url-status=dead|archive-url=https://web.archive.org/web/20150128113344/http://www.oldcarbrochures.org/NA/Cadillac/1953-Cadillac/1953-Cadillac-Accessories-Booklet/1953-Cadillac-Accessories-03|archive-date=2015-01-28}}</ref> as were wire wheels for US$325 (${{formatnum:{{Inflation|US|325|1953}}}} in {{Inflation-year|US}} dollars {{inflation-fn|US}}).<ref name="Flory, Jr. 2008" /> The car carried no special badging other than a gold-colored "Eldorado" nameplate in the center of the dash. A hard tonneau cover, flush with the rear deck, hid the convertible top when stored.

Although technically a subseries of the [[Cadillac Series 62]] based on the regular Series 62 convertible and sharing its engine, it was nearly twice as expensive at US$7,750 (${{formatnum:{{Inflation|US|7750|1953}}}} in {{Inflation-year|US}} dollars {{inflation-fn|US}}) as the all-new [[Packard Caribbean]] convertible.<ref name="Flory, Jr. 2008" />

The {{convert|220.8|in|mm}} long, {{convert|80.1|in|mm}} wide vehicle came with such standard features as windshield washers, a signal seeking radio, power windows, and a heater.<ref name="Flory, Jr. 2008">{{cite book|last=Flory, Jr.|first=J. "Kelly"|title=American Cars, 1946-1959 Every Model Every Year|year=2008|publisher=McFarland & Company, Inc., Publishers|isbn=978-0-7864-3229-5}}</ref> Only 532 were produced, comprising just 0.5% of Cadillac's 1953 sales.<ref name="Flory, Jr. 2008" />

<gallery widths="200" heights="145">
File:1953 custom Cadillac El Dorado dash.jpg|1953 Cadillac Eldorado interior
File:1953 Cadillac El Dorado convertible (31601871462).jpg|1953 Cadillac Eldorado
File:1953 Cadillac Eldorado - rear.jpg|1953 Cadillac Eldorado (rear)
</gallery>
{{clear right}}

{{Clear}}

==Second generation (1954–1956)==
{{Infobox automobile
| image       = Cadillac Eldorado Special (1955), photo-02.jpg
| caption     = 1955 Cadillac Eldorado
| name        = Second generation
| assembly    = [[Detroit, Michigan]], U.S.
| model_years = 1954–1956
| layout      = [[FR layout]]
| platform    = [[GM C platform (RWD)|C-body]]
| body_style   = 2-door [[hardtop]]<br />2-door [[convertible (car)|convertible]]
| engine       = {{convert|331|cuin|L|1|abbr=on}} [[Cadillac V8 engine#331|OHV V8]]<br />{{convert|365|cuin|L|1|abbr=on}} [[Cadillac V8 engine#365|OHV V8]]
| transmission = 4-speed [[Hydra-Matic]]<ref name="oldcarbrochures1955">{{cite web|url=http://www.oldcarbrochures.com/static/NA/Cadillac/1955_Cadillac/1955_Cadillac_Brochure/1955%20Cadillac-07.html |title=Directory Index: Cadillac/1955_Cadillac/1955_Cadillac_Brochure |publisher=Oldcarbrochures.com |access-date=2011-10-08}}</ref>
| wheelbase    = {{convert|129.0|in|mm|0|abbr=on}}
| length       = 1954: {{convert|223.4|in|mm|0|abbr=on}}<br />1955: {{convert|223.2|in|mm|0|abbr=on}}<br />1956: {{convert|222.2|in|mm|0|abbr=on}}
| width        = 1954: {{convert|79.6|in|mm|0|abbr=on}}<ref name="Gunnell 2005"/><br />1955: {{convert|79.8|in|mm|0|abbr=on}}<ref name="Gunnell 2005"/><br />1956: {{convert|80.1|in|mm|0|abbr=on}}<ref name="Gunnell 2005"/>
| height       =
| weight       = {{convert|4900|-|5100|lb|kg|abbr=on}}
| designer     = [[Harley Earl]]
| related      = [[Buick Roadmaster#1954–1956|Buick Roadmaster]]<br />[[Oldsmobile Starfire#98 Starfire (1954–1957)|Oldsmobile Starfire 98]]
}}

In 1954, the Eldorado lost its unique sheetmetal in an effort by GM to lower its price in order to increase sales.  Now sharing its basic body shell with standard Cadillacs, it was distinguished mainly by trim pieces, including golden identifying crests centered directly behind the air-slot fender breaks, and wide fluted beauty panels to decorate the lower rear sides. These panels were made of extruded aluminum, and also appeared on a one of a kind Eldorado coupé built for the Reynolds Aluminum Corporation. Also included in the production Eldorado convertible were monogram plates on the doors, wire wheels, and custom interior trimmings with the Cadillac crest embossed on the seat bolsters.  Sales nearly quadrupled at a much more modest US$5,738 base price (equivalent to ${{formatnum:{{Inflation|US|5738|1954}}}} in {{Inflation-year|US}} dollars {{inflation-fn|US}}), with a total of 2,150 Eldorados sold.<ref name="Flory, Jr. 2008" />

For 1955, the Eldorado's body gained its own rear end styling with somewhat higher, more slender, and distinctly pointed [[car tailfin|tailfins]], a styling change that portended extreme exaggerations to come. The Eldorado sport convertible featured extras such as wide chrome body belt moldings and twin round taillights halfway up the fenders. Sales nearly doubled to 3,950.<ref name="Flory, Jr. 2008" />

For 1956, a two-door hardtop [[coupé]] version was released, called the "Eldorado Seville", and a two-door convertible named "Eldorado Biarritz". An Eldorado script appeared with fender crest on the car, which was further distinguished by twin hood ornaments. An extra feature on the Eldorado convertible was a ribbed chrome saddle molding extending from the windshield to the rear window pillar along the beltline. With the addition of the Seville, sales rose yet again, by 60%. Of the 6,050 sold, 2,150 were Sevilles. Still the division's [[halo car]], Eldorados accounted for just 4% of all Cadillacs sold.<ref name="Flory, Jr. 2008" />

<gallery widths="200" heights="140">
File:Cadillac Convertible.jpg|1954 Cadillac Eldorado
File:Cadillac Eldorado Special (1955), photo-06.jpg|1955 Cadillac Eldorado with view of sharp "sharkfin" tailfins
File:Cadillac Eldorado Biaritz Convertible 1956.jpg|1956 Cadillac Eldorado Biarritz
File:Cadillac MarconiAutomotiveMuseum.jpg|1956 Cadillac Eldorado interior
</gallery>
{{Clear}}

==Third generation (1957–1958)==
{{Infobox automobile
| image       = File:1958_Cadillac_Eldorado_Seville.JPG
| caption     = 1958 Cadillac Eldorado Seville
| name        = Third generation<br />1957–1958
| assembly    = [[Detroit, Michigan]], United States
| model_years = 1957–1958
| layout      = [[FR layout]]
| platform    = Series 62: [[GM C platform (RWD)|C-body]]
| body_style   = Series 62:<br />2-door [[hardtop]]<br />2-door [[convertible (car)|convertible]]<br />4-door [[hardtop]] (4 specimen)<br />Series 70:<br />4-door [[hardtop]]
| engine       = {{convert|365|cuin|L|1|abbr=on}} [[Cadillac V8 engine#365|OHV V8]]
| transmission = 4-speed [[Hydra-Matic]]
| wheelbase    = Series 62: {{convert|129.5|in|mm|0|abbr=on}}<br />Series 70: {{convert|126.0|in|mm|0|abbr=on}}
| length       = 1957 Series 62: {{convert|222.1|in|mm|0|abbr=on}}<br />1958 Series 62: {{convert|223.4|in|mm|0|abbr=on}}<br />Series 70: {{convert|216.3|in|mm|0|abbr=on}}
| width        = Series 62: {{convert|80.0|in|mm|0|abbr=on}}<br />Series 70: {{convert|78.5|in|mm|0|abbr=on}}
| height       = Series 62: {{convert|59.1|in|mm|0|abbr=on}}<br />Series 70: {{convert|55.5|in|mm|0|abbr=on}}
| weight       = {{convert|5000|-|5500|lb|kg|abbr=on}}
| designer     = [[Harley Earl]]
| related      = [[Cadillac Series 62]]<br />[[Buick Limited]]<br />[[Oldsmobile 98]]
}}

Cadillac was restyled and re-engineered for 1957, with stylistic updates in 1958.

===1957===
1957 saw the Eldorado (in both Biarritz convertible and [[Cadillac Seville|Seville]] hardtop body styles) receive new styling with an exclusive rear-end design featuring a low, downswept fenderline capped by pointed in-board fins. Just behind the open rear wheel housings the lower rear quarters were trimmed with broad, sculptured stainless steel beauty panels that visually blended into the split rear wraparound bumper assemblies. A form of this unique rear-end treatment first appeared (sans fins) on the Cadillac "Interceptor" prototype from the immediate post-war era. [[Cadillac Series 62|Series 62]] Eldorados (as distinct from the [[Cadillac Series 70|Series 70]] Eldorado [[Cadillac Fleetwood Brougham|Brougham]]) were further distinguished by the model name above a V-shaped rear deck ornament and on the front fenders. The three section front bumper was shared with the rest of the redesigned Cadillac model line, as in previous years the Eldorados came with a long list of standard features. Four specially built 4-door hardtop Eldorado Sevilles were also built in 1957.

===1958===
For 1958, the car received quad headlights as the front clip was again shared with this year's updated standard Cadillacs. GM was promoting their fiftieth year of production, and introduced Anniversary models for each brand; Cadillac, Buick, Oldsmobile, Pontiac, and Chevrolet.<ref>[http://www.gmphotostore.com/1958-Chevrolet-Impala-50th-Anniversary-Art-Poster/productinfo/P8367/ Image of 50th Anniversary promotional photo] {{webarchive|url=https://web.archive.org/web/20151017224216/http://www.gmphotostore.com/1958-Chevrolet-Impala-50th-Anniversary-Art-Poster/productinfo/P8367/ |date=2015-10-17 }}</ref> The 1958 models shared a common appearance on the top models for each brand; Cadillac Eldorado Seville, Buick Limited Riviera, Oldsmobile Starfire 98, Pontiac Bonneville Catalina, and the all-new Chevrolet Bel-Air Impala.

This year's revised front clip incorporated a new hood, a new front bumper with "dagmars" mounted lower and further apart combined with a full-width jeweled grille. On the Biarritz and Seville, a V-shaped ornament and model identification script was asymmetrically mounted to the deck lid. Other styling updates included the addition of ten vertical chrome slashes ahead of the open rear wheel housings and crest medallions on the flank of the tailfins. The split rear bumper assemblies were each updated with a low-profile combined reverse light/grille unit that replaced the previous year's separate, round exhaust exits and reverse lights; the round brake/tail light units at the base of the fins remained unchanged. The rear license plate housing was now flanked on each side by five vertical hash marks.

<gallery widths="200" heights="145">
File:1957 Cadillac Eldorado Seville Hardtop Coupe in Silver, rear right.jpg|1957 Cadillac Eldorado Seville (hardtop coupe; rear)
File:57 Cadillac Eldorado Biarritz (9125175255).jpg|1957 Cadillac Eldorado Biarritz (convertible)
File:1957 Cadillac Eldorado Brougham hardtop (6997694908).jpg|1957 Cadillac Eldorado Brougham interior
File:Cadillac Eldorado Convertible 1958.jpg|1958 Cadillac Eldorado Biarritz
File:1958 SEVILLE BLACK.jpg|1958 Cadillac Eldorado Seville
</gallery>

===1957–1958 Eldorado Brougham===
Announced in December 1956 and released around March 1957, the ''Series 70 Eldorado Brougham'' was a distinct, hand-built four-door [[Luxury vehicle#Ultra-luxury|ultra-luxury]] vehicle, derived from the Park Avenue and [[Cadillac Orleans|Orleans]] show cars of 1953–54. Designed by [[Ed Glowacke]], Cadillac's 1950s design studio head, it stood out by featuring the first [[headlamp|quad headlights]]—at the time still illegal in the United States,<ref>{{cite journal |last1=Mead|first1=Howard|last2=Roper|first2=Val J.|date=October 1956|title=New 4-Lamp Dual Sealed-Beam Roadlighting System|journal=SAE Journal|pages=52–59}}</ref><ref>{{cite magazine |last=Rowsome|first=Frank Jr.|date=August 1956|pages=65–69|title=Why Cars are Going to Four Headlights|url= https://books.google.com/books?id=iSUDAAAAMBAJ&pg=PA65|magazine=Popular Science|access-date=14 March 2019}}</ref><ref>{{cite book |author=General Motors Research Laboratories in collaboration with lighting engineers of Guide Lamp Division|title=Optics and Wheels: a story of lighting from the primitive torch to the sealed beam headlamp|publisher=General Motors Public Relations Staff|pages=23–25|year=1965}}</ref> and other unique trim, foremost a brushed stainless steel pillarless hardtop. Like the later 1961 fourth-generation [[Lincoln Continental]], it had rear-hinged rear doors ([[suicide door]]s) but unlike the Continental, the Brougham was a true pillarless hardtop as the doors latched onto a stub pillar that did not extend beyond the beltline.

It cost US$13,074 (${{formatnum:{{Inflation|US|13074|1957}}}} in {{Inflation-year|US}} dollars {{inflation-fn|US}})—twice the price of a conventional 1957 Eldorado and more than competitors [[Rolls-Royce Silver Cloud]],<ref>{{cite web |title=Rolls Royce Silver Cloud (Series I, II & III) |url=https://www.conceptcarz.com/vehicle/series.aspx?modelID=137 |website=Conceptcarz |publisher=Conceptcarz.com |access-date=15 August 2021}}</ref>{{citation needed|date=August 2023}}<!-- The price I see in the source is: "Original Price: $15,650 - $22,750". --> [[Facel Vega Excellence]]<ref>{{cite web |title=1958 Facel-Vega Excellence Prices and Values |url=https://www.nadaguides.com/Cars/1958/facel-vega/excellence/4-door-hardtop-sedan/Values |website=NADA guides |publisher=J.D. Power. |access-date=15 August 2021}}</ref> or [[Continental Mark II]]. Sales were 400 in 1957 and 304 in 1958. 1958 was the last year for the domestic production of the handbuilt Brougham at Cadillac's Detroit factory, as future manufacturing of the special bodies was transferred to [[Pininfarina]] of [[Turin]], Italy. It was a marketing approach revival used in the early 1930s with the [[Cadillac V-16]] with similar attention to detail and engineering pursuits as a [[halo car]].

The car featured a roof trimmed in brushed stainless and [[Self-levelling suspension|self leveling]] [[air suspension]]. The exterior ornamentation included wide, polished lower rear quarter beauty panels extending along the rocker sills and rectangularly sculptured side body "cove" highlighted with five horizontal windsplits on the rear doors. Tail styling treatments followed the Eldorado pattern. It also had the first automatic two-position "memory" [[power seat]]s, a dual four-barrel V-8, low-profile tires with thin white-walls, automatic trunk opener and closer, high-pressure cooling system, polarized sun visors, electric antenna, electric door locks and a dual heating system. Other unique features included an automatic starter with restart function, [[Automatic highbeam headlamp|Autronic Eye]], drum-type electric clock, power windows, forged aluminum wheels and [[automobile air conditioning|air conditioning]], six silver magnetic glovebox drink tumblers and finally, an Evans leather trimmed cigarette case and vanity kit containing a lipstick holder, ladies' powder puff with powder, comb, beveled mirror, coin holder, matching leather notebook, gold mechanical pencil, and an atomizer filled with [[Arpège]] Extrait De Lanvin perfume.<ref name="Flory, Jr. 2008" /> Buyers of Broughams had a choice of 44 full-leather interior and trim combinations and could select such items as [[Sheepskin|Mouton]], [[Karakul (sheep)|Karakul]], or lambskin carpeting.<ref>{{cite web|url=http://www.oldcarbrochures.com/static/NA/Cadillac/1957_Cadillac/1957_Cadillac_Eldorado_Brougham_Press_Release/1957%20Cadillac%20Eldorado%20Brougham-02.html |title=Directory Index: Cadillac/1957_Cadillac/1957_Cadillac_Eldorado_Brougham_Press_Release |publisher=Oldcarbrochures.com |access-date=2011-10-08}}</ref>

There were serious difficulties with the air suspension, which proved troublesome in practice. Some owners found it cheaper to have it replaced with conventional coil springs than to keep repairing the air system.<ref>{{cite web| url=http://auto.howstuffworks.com/1950-1959-cadillac3.htm |title= 1957, 1958 Cadillac |work= HowStuffWorks |date=2007-03-13 |access-date=2011-10-08}}</ref>

The 1957 Eldorado Brougham joined the Sixty Special and the Series 75 as the only Cadillac models with [[Cadillac Fleetwood|Fleetwood]] bodies although Fleetwood script or crests did not appear anywhere on the exterior of the car,<ref name="Bonsal2003">{{cite book|last=Bonsall|first=Thomas|title=The Cadillac Story|year=2003|publisher=Stanford University Press|isbn=0-8047-4942-6}}</ref><ref name="SIA1970">{{cite journal|journal=Special Interest Autos|issue=#2 Nov.–Dec. 1970|title=Mark II Meets Eldorado Brougham}}</ref> and so this would also mark the first time in 20 years that a Fleetwood-bodied car was paired with the Brougham name.<ref name="Kowalke 1997"/><ref name="Gunnell 2005"/><ref name="kimes1996"/>

The 1957-58 Eldorado Brougham also marked the return of the [[Cadillac Series 70]], if only briefly. An all-transistor signal-seeking car radio was produced by GM's Delco radio and was first available for the 1957 Eldorado Brougham models, which was standard equipment and used 13 transistors in its circuitry.<ref name="GM Heritage Center">{{cite web|title=1957 & 58 Cadillac Eldorado Brougham|url=http://history.gmheritagecenter.com/wiki/index.php/1957_%26_58_Cadillac_Eldorado_Brougham|work=Generations of GM History|publisher=GM Heritage Center| archive-url=https://web.archive.org/web/20120309204448/http://history.gmheritagecenter.com/wiki/index.php/1957_%26_58_Cadillac_Eldorado_Brougham|archive-date=2012-03-09 }}</ref><ref>{{citation | title = 1956 GM Year-End Annual Report | date = 1957 | chapter = Cadillac Eldorado Brougham car model introduction announcement | page = 15 }}</ref><ref>''Radio & TV News'', August 1957, "Delco's All-Transistor Auto Radio", pg 60</ref><ref>''The Cadillac Serviceman'', Volume XXXI, No.4, April 1957 issue, Pg 34</ref>

The Eldorado Brougham received minor changes for 1958. The interior upper door panels were finished in leather instead of the metal finish used in 1957. New wheel covers also appeared. Forty-four trim combinations were available, along with 15 special monotone paint colors.

<gallery widths="200" heights="145">
Cadillac Eldorado Brougham.jpg|1957 Cadillac Eldorado Brougham
Caddy-Eldorado-B1958.jpg|1958 Cadillac Eldorado Brougham
Cadillac Eldoradio Brougham all-transistor car radio-1957 dash.JPG|1957 Eldorado Brougham all-transistor, in-dash car radio
</gallery>
{{Clear}}

==Fourth generation (1959–1960)==
{{Infobox automobile
| image = Cadillac Series 6400 Eldorado Biarritz (22022010200).jpg
| caption = 1959 Cadillac Eldorado Biarritz Series 6400
| name = Fourth generation<br />1959–1960
| assembly = [[Detroit, Michigan]], U.S.
| model_years = 1959–1960
| layout = [[FR layout]]
| platform = [[GM C platform (RWD)|C-body]]
| body_style = Series 62:<br />2-door [[hardtop]]<br />2-door [[convertible (car)|convertible]]<br />Series 6900:<br />4-door [[hardtop]]
| engine = {{convert|390|cuin|L|1|abbr=on}} [[Cadillac V8 engine#390|OHV]] [[V8 engine|V8]]
| transmission = 4-speed [[Hydra-Matic]]
| wheelbase = {{convert|130.0|in|mm|0|abbr=on}}
| length = {{convert|225.0|in|mm|0|abbr=on}}
| width = 1959 2-door: {{convert|80.2|in|mm|0|abbr=on}}<br />1960 2-door: {{convert|79.9|in|mm|0|abbr=on}}<br />4-door: {{convert|80.2|in|mm|0|abbr=on}}
| height = coupé: {{convert|54.1|in|mm|0|abbr=on}}<br />convertible: {{convert|54.4|in|mm|0|abbr=on}}<br />4-door: {{convert|56.2|in|mm|0|abbr=on}}
| weight = {{convert|5100|-|5300|lb|kg|abbr=on}}
| designer = [[Chuck Jordan (automobile designer)|Chuck Jordan]]
| related = [[Cadillac Sixty Special]]<br />[[Cadillac De Ville]]<br />[[Cadillac Series 62]]<br />[[Buick Electra]]<br />[[Oldsmobile 98]]
}}

===1959===
Along with the rest of the General Motors divisions, the bulky, originally proposed 1959 styling was abandoned in favor of a significantly lower, longer and wider theme as an overdue response to Virgil Exner's striking redesign of the 1957 Chrysler products. The 1959 Cadillac is remembered for its huge sharp tailfins with dual bullet tail lights, two distinctive rooflines and roof pillar configurations, new jewel-like grille patterns and matching deck lid beauty panels.

For 1959, the [[Cadillac Series 62|Series 62]] became the ''Series 6200''. [[Cadillac De Ville|De Ville]]s and two-door Eldorados were moved from the Series 62 to their own series, the ''Series 6300'' and ''Series 6400'' respectively, though they all, including the four-door Eldorado [[Cadillac Fleetwood Brougham|Brougham]] (which was moved from the [[Cadillac Series 70|Series 70]] to ''Series 6900''), shared the same {{convert|130|in|mm|0|abbr=on}} wheelbase. New mechanical items were a "scientifically engineered" drainage system and new shock absorbers.<ref>{{cite web |url=http://oldcarbrochures.org/NA/Cadillac/1959_Cadillac/1959_Cadillac_Comparison_Folder/1959-Cadillac-Comparison-Folder-04 |title=Comparison Folder |access-date=2015-03-30 |url-status=dead |archive-url=https://web.archive.org/web/20150402114350/http://oldcarbrochures.org/NA/Cadillac/1959_Cadillac/1959_Cadillac_Comparison_Folder/1959-Cadillac-Comparison-Folder-04 |archive-date=2015-04-02 }}</ref> All Eldorados were characterized by a three-deck, jeweled, rear grille insert that replicated the texture of the front grille; this front/rear grille treatment was shared with the Fleetwood Sixty Special and would continue through 1966 with textures being revised each year. The Seville and Biarritz models had the Eldorado name spelled out behind the front wheel opening and featured broad, full-length body sill highlights that curved over the rear fender profile and back along the upper beltline region. Engine output was an even {{convert|345|hp|kW|abbr=on}} from the {{convert|390|cuin|L|1|abbr=on}} engine. Standard equipment included power brakes, power steering, automatic transmission, back-up lamps, windshield wipers, two-speed wipers, wheel discs, outside rearview mirror, vanity mirror, oil filter, power windows, six way power seats, heater, fog lamps, remote control deck lid, radio and antenna with rear speaker, power vent windows, air suspension, electric door locks and license frames.<ref name="oldcarbrochures.org">{{cite web |url=http://oldcarbrochures.org/NA/Cadillac/1959_Cadillac/1959_Cadillac_Brochure/1959-Cadillac-15 |title=1959 Cadillac 15 |access-date=2015-03-30 |url-status=dead |archive-url=https://web.archive.org/web/20150402131846/http://oldcarbrochures.org/NA/Cadillac/1959_Cadillac/1959_Cadillac_Brochure/1959-Cadillac-15 |archive-date=2015-04-02 }}</ref> The Eldorado Brougham also came with air conditioning, automatic headlight dimmer, and cruise control standard over the Seville and Biarritz trim lines.<ref name="oldcarbrochures.org"/>

===1960===
1960 Cadillacs resemble 1959 Cadillacs, but with much lower tailfins and smoother, more restrained styling.

General changes included a full-width grille, the elimination of pointed front bumper guards, increased restraint in the application of chrome trim, lower tailfins minus the twin bullet taillamps, oval shaped nacelles and front fender mounted directional indicator lamps. External variations on the Seville two-door hardtop and Biarritz convertible took the form of bright body sill highlights that extended across the lower edge of fender skirts and Eldorado block lettering on the sides of the front fenders, just behind the headlamps. Standard equipment included power brakes, power steering, automatic transmission, dual back-up lamps, windshield wipers, two-speed wipers, wheel discs, outside rearview mirror, vanity mirror, oil filter, power windows, six-way power seats, heater, fog lamps, Eldorado engine, remote control trunk lock, radio with antenna and rear speaker, power vent windows, air suspension, electric door locks, license frames, and five whitewall tires. Technical highlights were finned rear drums and an X-frame construction. Interiors were done in Chadwick cloth or optional Chambray cloth and leather combinations. The last Eldorado [[Cadillac Seville|Seville]] was built in 1960.

The 1960 Cadillac Eldorado Biarritz 6467E is featured as [[Maurice Minnifield]]'s vehicle in the 1990s television series ''[[Northern Exposure]]''.<ref>[http://www.imcdb.org/vehicle_108238-Cadillac-Eldorado-Biarritz-6467E-1960.html 1960 Cadillac Eldorado Biarritz &#91;6467E&#93;] at IMCDb (Internet Movie Car Database)</ref>
[[File:59 eldorado.jpg|thumb|1959 Cadillac Eldorado Biarritz Convertible]]
<gallery widths="200" heights="145">
File:1960ELDORADO1.jpg|1960 Cadillac Eldorado in Siena Rose Metallic
File:1960ELDORADO3.jpg|1960 Cadillac Eldorado in Siena Rose Metallic
</gallery>

===1959–1960 Eldorado Brougham <span class="anchor" id="1959–60 Eldorado Brougham"></span>===
For model years 1959 and 1960, the Eldorado Brougham became longer, lower and wider. The Brougham featured narrow taillights integrated into low tailfins; an angular rear roofline with rear ventiplanes that contrasted to the rounded roofline; and the dual rocket-like taillights and tall fins of the standard 1959 models. Front and rear bumper assemblies were shared with the standard Cadillacs.

Designed in-house, Cadillac contracted with [[Pininfarina]] of [[Turin, Italy]] for the manufacture of the low-volume model. The Eldorado Broughams were among the first Cadillacs to be hand-built in Italy; concept cars were also hand built as needed. Cadillac chassis were sent by boat to the port of [[Savona]], Italy where they were then delivered to the factory in Turin at [[Pininfarina#Grugliasco factory|Grugliasco]], mated with the body and sent back to Detroit by boat.<ref>{{cite web |title=1959 Cadillac Eldorado Brougham by Pinninfarina |url=https://www.vintagemotorssarasota.com/listing/1959-cadillac-eldorado-brougham-by-pininfarina/#:~:text=It%20was%20hand%2Dbuilt%204%2C000,shipped%20to%20Italy%20by%20boat. |website=Vintage Motors of Sarasota |publisher=Vintage Motors of Sarasota Inc |access-date=6 March 2021}}</ref>

Priced at $13,075 (${{formatnum:{{Inflation|US|13075|1959}}}} in {{Inflation-year|US}} dollars {{inflation-fn|US}}), the Brougham cost $1 more than their older siblings and did not sell as well as their forebears.<ref name="Flory, Jr. 2008" />

A vertical crest medallion with Brougham script plate appeared on the front fenders and a single, thin molding ran from the front to rear along the mid-sides of the body. The Brougham did not have Eldorado front fender letters or Eldorado-specific body edge highlight trim. For 1960 new standard model bumpers were incorporated and a fin-like crest or [[skeg]] ran from behind the front wheel opening to the rear of the car on the lower bodyside with the crest medallions relocated to the trailing edge of the rear fenders. The standard equipment list matched those of other Eldorados, plus Cruise Control, [[Automatic highbeam headlamp|Autronic Eye]], [[Automobile air conditioning|air conditioning]] and E-Z Eye glass.

The Eldorado Brougham was moved to its own unique Series 6900 from Series 70 for its remaining two years.

<gallery widths="200" heights="145">
File:59svl.JPG|1959 Cadillac Eldorado Seville
File:Cad fins.jpg|1959 Cadillac "rocketship" taillights and flamboyant fins
File:1960 Cadillac Eldorado (6787873429).jpg|1960 Cadillac Eldorado
File:1959 Eldorado brougham.jpg|1959 Cadillac Eldorado Brougham, showing the more modest tail fin design to come to all Cadillacs in 1960
File:Goodwood Breakfast Club - Cadillac Eldorado - Flickr - exfordy.jpg|1959 Cadillac Eldorado interior
File:Cadillac 1960 Eldorado (4315222790).jpg|1960 Cadillac Eldorado Biarritz
</gallery>
{{clear}}

==Fifth generation (1961–1962)==
{{Infobox automobile
| image = 1961 Cadillac Series 64 Eldorado Biarritz Convertible (32568908543).jpg
| caption = 1961 Eldorado Biarritz Convertible
| name = Fifth generation
| model_years = 1961–1962
| assembly = [[Detroit, Michigan]], U.S.
| layout = [[FR layout]]
| platform = [[GM C platform (RWD)|C-body]]
| body_style = 2-door [[convertible (car)|convertible]]
| engine = {{convert|390|cuin|L|1|abbr=on}} [[Cadillac V8 engine#390|OHV]] [[V8 engine|V8]]
| transmission = 4-speed [[Hydra-Matic]], [[automatic transmission|automatic]]
| wheelbase = {{convert|129.5|in|mm|0|abbr=on}}
| length = 1961–62: {{convert|222.0|in|mm|0|abbr=on}}
| width = 1961: {{convert|79.8|in|mm|0|abbr=on}}<ref name="Gunnell 2005"/><br />1962: {{convert|79.9|in|mm|0|abbr=on}}
| height =
| weight = {{convert|4800|-|5000|lb|kg|abbr=on}}
| designer = [[Bill Mitchell (designer)|Bill Mitchell]]
| related = [[Cadillac Sixty Special]]<br />[[Cadillac De Ville]]<br />[[Cadillac Series 62]]<br />[[Buick Electra]]<br />[[Oldsmobile 98]]
}}

===1961===
All Cadillacs were restyled and re-engineered for 1961. The Eldorado Biarritz convertible (6367) was technically reclassified as a subseries of the [[Cadillac De Ville|De Ville]] (Series 6300), a status it would keep through 1964. An Eldorado convertible would remain in the Cadillac line through 1966, but its differences from the rest of the line would be generally more modest. The new convex jewelled grille slanted back towards both the bumper and the hood lip, along the horizontal plane, and sat between dual headlamps. New rear-slanting front pillars with a reverse-curved base as first used on the 1959-60 Broughams with a somewhat less expansive windshield was incorporated. The Eldorado Biarritz featured front series designation scripts and a lower body "skeg" trimmed with a thin three quarter length spear molding running from behind the front wheel opening to the rear of the car.
Standard equipment included power brakes, power steering, automatic transmission, dual reverse lights, vanity mirror, power windows, 6-way power bench seat, power vent windows. whitewall tires. Options; bucket seats, RH outside rearview mirror remote control trunk lock and a trumpet horn.
Rubber-isolated front and rear coil springs replaced the trouble prone air suspension system. Four-barrel induction systems were now the sole power choice and dual exhaust were no longer available. With the [[Cadillac Seville|Seville]] and [[Cadillac Brougham|Brougham]] gone, sales fell to 1,450.

===1962===
A mild facelift characterized Cadillac styling trends for 1962. A flatter, upright grille with a thicker horizontal center bar and more delicate cross-hatched insert appeared. Ribbed chrome trim panel, seen ahead of the front wheel housings in 1961, were now replaced with cornering lamps and front fender model and series identification badges were eliminated. More massive front bumper end pieces appeared and housed rectangular parking lamps. At the rear tail lamps were now housed in vertically oriented rectangular nacelles designed with an angled peak at the center. A vertically ribbed rear beauty panel replicating the grille treatment appeared on the deck lid latch panel. Cadillac script also appeared on the lower left side of the grille. Standard equipment included all of last year's equipment plus remote controlled outside rearview mirror, heater and defroster and front cornering lamps. Cadillac refined the ride and quietness, with more insulation in the floor and behind the firewall.<ref>Flory, p.147.</ref><gallery widths="200" heights="150">
File:1961 Cadillac Eldorado (7458453896).jpg|1961 Cadillac Eldorado (rear)
</gallery>{{clear}}

==Sixth generation (1963–1964)==
{{Infobox automobile
| image       = 1964 Cadillac Eldorado Biarritz Convertible type 6367.jpg
| caption     = 1964 Eldorado Biarritz convertible
| name        = Sixth generation
| model_years = 1963–1964
| assembly    = [[Detroit, Michigan]], U.S.
| layout      = [[FR layout]]
| platform    = [[GM C platform (RWD)|C-body]]
| body_style   = 2-door [[convertible (car)|convertible]]
| engine       = {{convert|390|cuin|L|1|abbr=on}} [[Cadillac V8 engine#390|OHV]] [[V8 engine|V8]]<br /> {{convert|429|cuin|L|1|abbr=on}} [[Cadillac V8 engine#429|OHV]] [[V8 engine|V8]]
| transmission = 1963: 4-speed [[Hydra-Matic]]<br /> 1964: 3-speed [[Turbo-Hydramatic#Super Turbine 400 / THM400 / 3L80 / 3L80HD|TH-400]], [[automatic transmission|automatic]]
| wheelbase    = {{convert|129.5|in|mm|0|abbr=on}}
| length       = 1963: {{convert|223.0|in|mm|0|abbr=on}}<br />1964: {{convert|223.5|in|mm|0|abbr=on}}
| width        = 1963: {{convert|79.7|in|mm|0|abbr=on}}<ref name="Gunnell 2005"/><br />1964: {{convert|79.5|in|mm|0|abbr=on}}<ref name="Gunnell 2005"/>
| height       =
| weight       = {{convert|4800|-|5000|lb|kg|abbr=on}}
| designer     = [[Bill Mitchell (designer)|Bill Mitchell]]
| related      = [[Cadillac Sixty Special]]<br />[[Cadillac De Ville]]<br />[[Cadillac Series 62]]<br />[[Buick Electra]]<br />[[Oldsmobile 98]]
}}

===1963===
In 1963, the Eldorado Biarritz joined the [[Cadillac Sixty Special]] and the [[Cadillac Series 70|Cadillac Series 75]] as the only Cadillac models with [[Cadillac Fleetwood|Fleetwood]] bodies, thus acquiring the Fleetwood wreath and crest on its rear quarters<ref>{{cite web |url=http://www.car-nection.com/yann/Dbas_txt/Phocad63.htm |title=Cadillac photos - 1963 |publisher=Car-nection.com |access-date=2011-11-20 |url-status=dead |archive-url=https://web.archive.org/web/20110926223203/http://www.car-nection.com/yann/Dbas_txt/Phocad63.htm |archive-date=2011-09-26 }}</ref> and Fleetwood rocker panel moldings.<ref name="Bonsal2003"/> The 1963 Eldorado was also the first Fleetwood bodied convertible since the Cadillac Series 75 stopped offering four- and two-door convertible body styles and production of the [[Cadillac V-16|Cadillac Series 90]] (V16) ceased in 1941.<ref name="Kowalke 1997"/><ref name="kimes1996">{{cite book|last=Kimes|first=Beverly|title=Standard Catalog of American Cars 1805-1942|year=1996|publisher=Krause publications|isbn=0-87341-428-4}}</ref> In overall terms, the 1963 Cadillac was essentially the same as the previous year. The completely redesigned body imparted a bolder and more angular look. The front fenders projected 4.625&nbsp;inches further forward than in 1962 while the tailfins were trimmed down somewhat to provide a lower profile. Body side sculpturing was eliminated in favor of smooth, flatter slab sides. The slightly V-shaped radiator grille was taller and now incorporated outer extensions that swept below the dual headlamps and housed small circular front parking lamps. The Eldorado also had a rectangular front and rear grille pattern that it again shared with the Fleetwood Sixty Special. A total of 143 options including bucket seats with wool, leather or nylon upholstery fabrics and wood veneer facings on dash, doors and seatbacks, set an all-time record for interior appointment choices. Standard equipment was the same as the previous year. The engine was entirely changed, though the displacement and output remained the same, {{convert|390|cid|L|1|abbr=on}} and {{convert|325|hp|kW|abbr=on}}.<ref>Flory, p.211.</ref>

===1964===
The Eldorado received a minor facelift for 1964. The main visual cue indicating an Eldorado Biarritz rather than a De Ville convertible was simply the lack of [[fender skirts]]. New up front was a bi-angular grille that formed a V-shape along both its vertical and horizontal planes bisected by a central body-colored horizontal bar. Outer grille extension panels again housed the parking and cornering lamps. It was the 17th consecutive year for the Cadillac tailfins with a new fine-blade design carrying on the tradition. Performance improvements including a larger 429 cubic inch V8 engine were the dominant changes for the model run. Equipment features were same as in 1963 for the most part. Comfort Control, a completely automatic heating and air conditioning system controlled by a dial thermostat on the instrument panel, was introduced as an industry first. The engine was bumped to {{convert|429|cid|L|0|abbr=on}}, with {{convert|340|hp|kW|abbr=on}} available. Performance gains from the new engine showed best in the lower range, at {{convert|20|to|50|mph|km/h|sigfig=1|abbr=on}} traffic driving speeds. A new technical feature was the Turbo-Hydramatic transmission, also used in the De Ville and the Sixty Special.  Series 62, 75. and the Commercial Chassis continued with the old Hydra-Matic until 1965.

<gallery widths="200" heights="150">
File:1963 Cadillac Eldorado Convertible (36033540973).jpg|1963 Cadillac Eldorado Biarritz
File:1963 Cadillac Eldorado convertible, rear 5.19.19.jpg|1963 Cadillac Eldorado (rear)
File:Cadillac Eldorado Convertible 1964 (intérieur).jpg|1964 Cadillac Eldorado interior
</gallery>

{{Clear}}

==Seventh generation (1965–1966)==
{{Infobox automobile
| image = Cadillac Eldorado Convertible 1966 (14523210954).jpg
| name = Seventh generation
| model_years = 1965–1966
| assembly = [[Detroit, Michigan]], U.S.
| layout = [[Front-engine, rear-wheel drive layout|FR layout]]
| platform = [[GM C platform (RWD)|C-body]]
| body_style = 2-door [[convertible (car)|convertible]]
| engine = {{convert|429|cuin|L|1|abbr=on}} [[Cadillac V8 engine#429|OHV]] [[V8 engine|V8]]
| transmission = 3-speed Turbo-Hydramatic ''[[Turbo-Hydramatic#Super Turbine 400 / THM400 / 3L80 / 3L80HD|THM400]]'' [[automatic transmission|automatic]]
| wheelbase = {{convert|129.5|in|mm|0|abbr=on}}
| length = {{convert|224.0|in|mm|0|abbr=on}}
| width = {{convert|79.9|in|mm|0|abbr=on}}
| height =
| weight = {{convert|4700|-|4900|lb|kg|0|abbr=on}}
| designer = [[Bill Mitchell (designer)|Bill Mitchell]]
| related = {{unbulleted list|[[Cadillac De Ville]]|[[Cadillac Calais]]|[[Buick Electra]]|[[Oldsmobile 98]]}}
| caption = 1966 Cadillac Eldorado
}}
For 1965, the Eldorado gained Cadillac's [[Cadillac Fleetwood|Fleetwood]] designation,<ref name="Kowalke 1997"/><ref name="Gunnell 2005"/><ref name="John Gunnell 1975, page 130">John Gunnell. Standard Catalogue of American Cars 1946-1975, 4th Edition, page 130</ref> marketed as the Fleetwood Eldorado, in a similar fashion to the [[Cadillac Series 75|Fleetwood Series 75]] and the [[Cadillac Sixty Special|Fleetwood Sixty Special]].<ref name="Kowalke 1997"/><ref name="Gunnell 2005"/><ref>[http://www.oldcarbrochures.com/static/NA/Cadillac/1965_Cadillac/1965_Cadillac_Brochure_1/1965%20Cadillac-18-19.html 1965 Cadillac sales brochure, page 18] Retrieved on 7 February 2012</ref> The Biarritz nomenclature was finally dropped from sales literature, probably because there was no need to distinguish the convertible from the long defunct Eldorado [[Cadillac Seville|Seville]] and [[Cadillac Brougham|Brougham]] (The Biarritz nameplate would be revived in 1976 as a trim option for the Eldorado coupe). This was the last generation Eldorado to be equipped with rear wheel drive.

The redesigned Eldorado still rode on the same {{convert|129.5|in|mm|0|abbr=on}} wheelbase. The elevated tailfins became slightly downward-sloping, and sharp, distinct body lines replaced the rounded look. Also new were a straight rear bumper and vertical lamp clusters. The headlight pairs switched from horizontal to vertical, thus permitting a wider grille. Curved frameless side windows appeared with a tempered glass backlight. New standard features included lamps for luggage and glove compartments and front and rear safety belts. Power was still supplied by the 340 horsepower {{convert|429|CID|cc|abbr=on}} V8. Perimeter frame construction allowed repositioning the engine six inches forward in the frame, thus lowering the transmission hump and increasing interior room.

In 1966, changes included a somewhat coarser mesh for the radiator grille insert, which was now divided by a thick, bright metal horizontal center bar housing rectangular parking lamps at the outer ends. Separate rectangular side marker lamps replaced the integral grille extension designs. There was generally less chrome on all Cadillac models this year. Cadillac "firsts" this season included variable ratio power steering and optional front seats with carbon cloth heating pads built into the cushions and seatbacks. Comfort and convenience innovations were headrests, reclining seats and an AM/FM stereo system. Automatic level control was available. Engineering improvements made to the perimeter frame increased ride and handling ease. Newly designed piston and oil rings and a new engine mounting system and patented quiet exhaust were used.
<gallery mode="packed">
File:1965 Cadillac Eldorado (28371304067).jpg|1965 Cadillac Eldorado
File:1966 Cadillac Eldorado Convertible rear.JPG|1966 Cadillac Eldorado
File:1966 Cadillac Eldorado convertible (6997985224).jpg|1966 Cadillac Eldorado interior
</gallery>
{{clear}}

==Eighth generation (1967–1970)==
{{Infobox automobile
| name = Eighth generation
| image = 67 Cadillac Eldorado (14277560774).jpg
| caption = 1967 Cadillac Eldorado
| designer = [[Bill Mitchell (designer)|Bill Mitchell]]
| production = 1967–1970
| assembly = [[Detroit, Michigan]], U.S.
| layout = [[Front-engine, front-wheel-drive layout|Longitudinal front-engine, front-wheel drive]]
| platform = [[GM E platform|E-body]]
| length = {{convert|221.0|in|mm|0|abbr=on}}
| wheelbase = {{convert|120.0|in|mm|0|abbr=on}}
| width = {{convert|79.9|in|mm|0|abbr=on}}
| height =
| weight = {{convert|4696|lb|kg|0|abbr=on}}
| body_style = 2-door [[hardtop]]
| engine = {{unbulleted list| {{convert|429|cid|L|abbr=on}} [[Cadillac V8 engine#OHV|OHV V8]] (1967 only)<ref>Flory, J. "Kelly", Jr. ''American Cars 1960-1972'' (Jefferson, NC: McFarland & Coy, 2004), p. 498.</ref> | {{convert|472|cid|L|1|abbr=on}} V8 (introduced 1968)<ref name="Flory, pp.571">Flory, p. 571.</ref><ref>Ludvigsen, Karl. "Cadillac: The Great American Dream Come True", in Northey, Tom, ed. ''World of Automobiles'' (London: Orbis, 1974), Vol. 3, p. 297.</ref> | {{convert|500|cid|L|1|abbr=on}} V8 (introduced 1970)<ref name="Flory, pp.571"/> }}
| related = [[Buick Riviera]]<br />[[Oldsmobile Toronado]]
| transmission = 3-speed [[automatic transmission|automatic]]
}}

The Eldorado was radically redesigned for 1967 as a [[front-wheel drive]] [[hardtop]] coupe, becoming Cadillac's entry in the era's burgeoning [[personal luxury car]] market.<ref name=Hemmings67/> Promoted as a "personal" Cadillac, it shared the [[GM E platform|E-body]] with the second-generation [[Buick Riviera#Second generation (1966–1970)|Buick Riviera]] and the first-generation [[Oldsmobile Toronado#First generation (1966–1970)|Oldsmobile Toronado]], which had been introduced the previous year.<ref name=Hemmings67/>

To enhance its distinctiveness, Cadillac adapted the Toronado's front-wheel drive ''unified powerplant package'', mating a [[Cadillac V8 engine#429|Cadillac 429 V8]] to a [[Turbo-Hydramatic 425]] [[automatic transmission]].<ref name=Hemmings67/> Front [[disc brake]]s were optional, and new standard safety equipment included an energy absorbing steering column and generously padded instrument panel.<ref>{{cite web|url=http://www.oldcarbrochures.com/static/NA/Cadillac/1967_Cadillac/1967_Cadillac_Brochure/1967%20Cadillac-22.html|title=1967 Cadillac Brochure |work=oldcarbrochures.com |accessdate=17 September 2023}}</ref>

The 1967 Eldorado was a great departure from previous generations, which shared styling with Cadillac's [[Cadillac De Ville|De Ville]] and [[Cadillac Series 62|Series 62]].<ref name=CCbrougham/> GM styling chief [[Bill Mitchell (designer)|Bill Mitchell]] chose angular, crisp styling for the Eldorado, setting it apart from more streamlined Riviera and Toronado. The rear end design was inspired by the [[GM-X Stiletto]] concept car.<ref>{{cite web|url=https://www.caranddriver.com/features/g15380829/exceptional-conceptual-the-greatest-concept-cars-of-all-time-volume-i/?slide=7 |title=The Greatest Concept Cars of All Time, Volume I |date=25 August 2015 |work=Car and Driver |accessdate=17 September 2023}}</ref> It was the first and only Cadillac model with the headlamps concealed behind moveable covers; this feature was for two years only (1967 and 1968). Rear passenger windows retracted sideways into the C-pillar instead of down into the side body panel.

The Eldorado achieved 0-60&nbsp;mph (0–97&nbsp;km/h) acceleration in less than nine seconds, and a top speed of {{cvt|120|mph|km/h}}. Roadability and neutral handling were highly praised by contemporary reviews, and sales were excellent despite high list prices. Its sales of 17,930 units,<ref>Flory, p.501.</ref> nearly three times the previous Eldorado high, helped give Cadillac its best year ever.<ref>Ludvigsen, p. 297. He also says "over 200,000 built"; Flory, pp. 500-502, counts only 197,667, albeit not including small numbers of coachbuilt cars.</ref>

In 1968, the 429 V8 was replaced by the new [[Cadillac V8 engine#472 series|472 (7.7 L) V8]] with SAE gross {{convert|375|hp|kW|abbr=on}} and {{convert|525|lbft|Nm|0|abbr=on}} of torque. Despite the larger and more powerful engine, acceleration did not improve due to the reduction in final drive ratio from 3.21 to 3.07. Fuel consumption was 10 mpg (23.5 l/100&nbsp;km) city and 13 mpg (18 l/100&nbsp;km) highway.<ref name=ate>{{cite web|url=https://ateupwithmotor.com/model-histories/1967-cadillac-eldorado/4/ |title=This Time, It's Personal: The 1967-1970 Cadillac Eldorado |work=Ate Up With Motor |date=31 December 2010 |accessdate=17 September 2023}}</ref> The hood was extended 4.5 inches longer in the rear as to conceal the windshield wipers. The previously optional front [[disc brake]]s became standard. The bumper-mounted front turn signal indicators and parking lights were repositioned to the fenders, replacing the end caps. The red side running lamps without retroreflective markers were attached to the rear fenders. The external rear view mirrors were enlarged and became rectangle-shaped with fixed housing and moveable mirror. Sales set another record at 24,528, with Eldorado accounting for nearly 11% of all Cadillac models sold.

In 1969, the concealed headlamps were eliminated due to the new federal safety regulations stipulating that the headlamp covers must operate within a specific period of time when entering tunnels or darkened buildings (i.e. parking garages). Side impact protection beams were installed inside the doors. The dashboard and instrument cluster were redesigned: the dash cowl became more pronounced and contained all of the controls, driver's side vents, and instrument clusters. On the passenger side, the vents were moved to the single horizontal rosewood veneer panel. The instrument clusters had a thin wood veneer panel where the warning lights are located. For 1970, the wood veneer was expanded to cover most of the instrument clusters.

In 1970, the Eldorado featured the new [[Cadillac V8 engine#500|Cadillac 500 V8]] (8.2 L) V8 engine, putting out SAE gross {{convert|400|hp|kW|0|abbr=on}} and {{convert|550|lb.ft|N.m|0|abbr=on}}. It was exclusive to the Eldorado until 1975, when it became the standard engine option for all Cadillac models except the [[Cadillac Seville#First generation (1976–1979)|Seville]].<ref name=CCbrougham/> The power sunroof by [[American Specialty Cars|ASC]] and rear [[Anti-lock braking system#Modern systems|"Trackmaster" anti-lock braking system]] were offered as extra-cost options.<ref name=ate/> Styling changes for 1970 included a new grille with scripted "Eldorado" and rectangular "8.2 LITRE" badges, and new taillamp bezels that eliminated the protruding "chrome fins". The side running lamps included retroreflective markers, amber in the front and red in the rear. 
<gallery mode="packed">
File:67Eldorado.jpg|1967 Cadillac Eldorado 
File:67 Cadillac Eldorado (14091351279).jpg|1967 Cadillac Eldorado interior
File:1967 Cadillac Eldorado.jpg|1970 Cadillac Eldorado (rear)
File:Lars Jacob's 1970 Cadillac Eldorado 1983.jpg|1970 Cadillac Eldorado (front)
</gallery>
{{clear}}

==Ninth generation (1971–1978)==
{{Infobox automobile
| name = Ninth generation
| image = 1976 Cadillac Eldorado convertible 1 -- 10-23-2009.jpg
| caption = 1976 Cadillac Eldorado convertible
| production = 1971–1978
| assembly = [[Detroit Assembly]], [[Detroit, Michigan]], U.S.
| wheelbase = {{convert|126.3|in|mm|0|abbr=on}}
| layout = [[Front-engine, front-wheel-drive layout|Longitudinal front-engine, front-wheel drive]]
| platform = [[GM E platform|E-body]]
| width = {{convert|79.8|in|mm|0|abbr=on}}
| length = {{convert|224|in|mm|0|abbr=on}} (1977–78)<br />{{convert|224.1|in|mm|0|abbr=on}} (1974–76)<br />{{convert|223|in|mm|0|abbr=on}} (1971–73)
| height = {{convert|54.2|in|mm|0|abbr=on}}
| weight = {{convert|4828|lb|kg|0|abbr=on}}
| body_style = 2-door [[coupé]]<br />2-door [[convertible (car)|convertible]]
| engine = {{convert|500|cuin|L|1|abbr=on}} [[V8 engine|V8]] (1971–76) <br /> {{convert|425|cuin|L|1|abbr=on}} V8 (1977–78)
| related = [[Buick Riviera]]<br />[[Oldsmobile Toronado]]
| transmission = 3-speed [[automatic transmission|automatic]]
}}

The ninth generation Eldorado, introduced for 1971, was substantially redesigned, growing two inches in length, six in wheelbase and featuring standard [[fender skirts]], all of which gave the car a much heavier appearance than the previous generation. The [[Cadillac V8 engine#500|500 cu in]] (8.2 L) V8 engine remained an Eldorado exclusive. This {{convert|126.3|in|mm|0|abbr=on}} wheelbase Eldorado would run through 1978, with major facelifts for 1973, 1974 and 1975. A record 27,368 Eldorados were sold during the 1971 model year. 

An Eldorado convertible was also offered for 1971, the first in the line since 1966. Door glass remained frameless, and the hardtop rear quarter windows were deleted, replaced by a fixed "[[opera window]]" in the widened "C" pillar. A stand-up wreath and crest hood ornament was new this year.

Inside, there was a redesigned instrument panel and new seat configurations. A fiber-optic "lamp monitor" system, which displayed the functionality of the headlamps, taillamps, parking lamps, turn signals and brakelights was mounted on each front fender and the shelf below the rear window. 

Changes were minimal for 1972, the most noticeable exterior change was a new 'Eldorado' script, replacing the block 'Eldorado' lettering on the front fenders and trunk lid. Sales for 1972 increased to 40,074.

In 1973, the Eldorado was removed from the [[Cadillac Fleetwood|Fleetwood]] series and reestablished as its own series.<ref name="Kowalke 1997"/><ref name="Gunnell 2005"/><ref name="John Gunnell 1975, page 130"/> The 1973 models received a major facelift, featuring a massive eggcrate grille, new front and rear bumpers, decklid, rear fenders and taillamps. Interiors featured new "soft pillow" door panels, with larger, sturdier pull-straps. The rear "lamp monitor" display which showed the driver the function of the turn signal, brake and taillamps, was relocated (except on the convertible) from the rear shelf, to the headliner just above the rear window.

The Cadillac Eldorado was chosen as the official pace car for the [[Indianapolis 500]] in 1973. Cadillac produced 566 of these special pace car convertibles. Thirty-three were used at the track during the race week, with the remainder distributed to U.S. Cadillac dealers one per dealership. Sales of the Eldorado coupe and convertible soared to 51,451 the highest total for the model during the 1970s and over a sixth of all Cadillac sales for 1973.

The lengthened wheelbase reduced performance relative to contemporary premium [[personal luxury car]]s, but offered comfortable seating for six adults rather than just four.

For 1974, the Eldorado featured a redesigned rear bumper with vertical chrome fender extensions, housing rear reflector/sidemarker lamps. This new bumper was designed to meet the new [[Bumper (automobile)#Zero-damage standards 1976|5 mile impact federal design regulation]]. Other styling changes included new horizontal taillamps placed beneath the trunk lid, a new fine mesh grille with Cadillac script on the header and new standard wheel covers. Inside, there was a redesigned two-tier, curved instrument panel, marketed in sales literature as "space age" and shared with all 1974 Cadillacs.
A new, quartz controlled digital clock, an "information band" of warning lights and the fuel gauge ran horizontally along the upper tier of this new instrument panel.

The 1975 Eldorado received another facelift, with new rectangular headlamps, egg-crate grille, front bumper, full rear wheel openings sans [[fender skirts]] and sharper, angular lines resulting in a sleeker appearance, more reminiscent of the 1967–70 models.<ref>{{cite web|url=http://ateupwithmotor.com/model-histories/cadillac-eldorado-convertible-1971-1976/ |title=Last Time Around: The 1971–1976 Cadillac Eldorado Convertible > |publisher=Ate Up With Motor |date=2008-04-08 |access-date=2018-09-26}}</ref>

After years of diminishing sales, Cadillac announced that 1976 was to be the final year for the Eldorado convertible and the car was heavily promoted by General Motors as "the last American convertible". Some 14,000 would be sold, with many customers purchasing multiple cars as investments. The final 200 convertibles were designated as "Bicentennial Edition" commemorating America's 200th birthday. All 200 of these cars were identical, painted white with a dual red/blue pinstripe along the upper bodyside and inside, a commemorative plaque was mounted on the dashboard. When Cadillac reintroduced the Eldorado convertible for the 1984 model year, several customers who had purchased 1976 Eldorado convertibles as investments, felt they had been deceived and launched an unsuccessful class action lawsuit against General Motors.<ref>{{cite web |author=the Auto Editors of Consumer Guide |url=http://auto.howstuffworks.com/1982-1985-cadillac-eldorado-convertible-and-touring-coupe.htm |title=HowStuffWorks "1982-1985 Cadillac Eldorado Convertible & Touring Coupe" |publisher=Auto.howstuffworks.com |date=2007-07-12 |access-date=2011-10-08 |archive-date=2011-11-03 |archive-url=https://web.archive.org/web/20111103205219/http://auto.howstuffworks.com/1982-1985-cadillac-eldorado-convertible-and-touring-coupe.htm |url-status=dead }}</ref>
Having received a major facelift the previous year, the 1976 Eldorado received only minor styling changes, including a new grille, a small Cadillac script on the hood face, revised taillamp lenses and new black painted wheel covers.

For 1977, the Eldorado again received a new grille with a finer crosshatch pattern. New vertical taillamps were relocated from below the trunk lid to the chrome bumper-fender extensions. New 'Eldorado' block-lettering appeared on the hood face and new rectangular side marker lights with 'Eldorado' block-lettering, replaced the 'Eldorado' script on the rear fenders. The convertible was dropped (although Custom Coach of Lima, Ohio converted a few 1977 and 1978 Eldorados into convertibles using salvaged parts from earlier models). The mammoth 500 cu in. (8.2L) V8 of 1970–76 was replaced by a new 425 cu in. (7L) V8 with {{convert|180|bhp|kW|0|abbr=on}} available in all 1977 Cadillacs, except the [[Cadillac_Seville#First_generation_(1976–1979)|Seville]].

A new grille was the only obvious change for 1978; the Eldorado would be completely redesigned and downsized for 1979.

{|class="wikitable mw-collapsible sortable mw-collapsed" style="float:right;"
|+Performance against competitors (1972)
|-
!Make & model
![[Horsepower]] ''''SAE net''''
![[Production car speed record|Top speed]]
![[Acceleration]] [[0 to 60 mph]] (0–97&nbsp;km/h)
![[Fuel economy in automobiles|Fuel economy]]
|-
!Cadillac Eldorado
|{{convert|238|PS|kW bhp|1|abbr=on}}|| {{convert|189|km/h|abbr=on}}||9.7 sec|| {{convert|4|km/L|abbr=on}}<ref>{{cite web|url=http://www.automobile-catalog.com/make/cadillac/eldorado_1971-1978/eldorado_1971-1978_hardtop/1972.html |title=1972 Cadillac Eldorado Hardtop Coupe full range specs |publisher=Automobile-catalog.com |access-date=2018-09-26}}</ref>
|-
![[Lincoln Continental Mark IV|Continental Mark IV]]
|{{convert|215|PS|kW bhp|1|abbr=on}}|| {{convert|190|km/h|abbr=on|0}}||10.8 sec|| {{convert|4.8|km/L|abbr=on}}<ref>{{cite web|url=http://www.automobile-catalog.com/make/lincoln/continental_mark_iv/continental_mark_iv_coupe/1972.html |title=1972 Lincoln Mark IV Coupe full range specs |publisher=Automobile-catalog.com |access-date=2018-09-26}}</ref>
|-
![[Oldsmobile Toronado]]
|{{convert|269|PS|kW bhp|1|abbr=on}}|| {{convert|206|km/h|abbr=on|0}}||10 sec|| {{convert|4.2|km/L|abbr=on}}<ref>{{cite web|url=https://www.carfolio.com/specifications/models/car/?car=69795 |title= 1972 Oldsmobile Toronado full range specs}}</ref>
|-
![[Buick Riviera]]
|{{convert|253|PS|kW bhp|1|abbr=on}}|| {{convert|202|km/h|abbr=on|0}}||8.9 sec|| {{convert|4.1|km/L|abbr=on}}<ref>{{cite web |url=https://www.automobile-catalog.com/make/buick/riviera_3gen/riviera_3gen |title=1972 Buick Riviera full range specs }}{{Dead link|date=July 2020 |bot=InternetArchiveBot |fix-attempted=yes }}</ref>
|-
![[Imperial (automobile)#Fourth generation (1969–1973)|Imperial LeBaron coupe]]
|{{convert|228|PS|kW bhp|1|abbr=on}}|| {{convert|191|km/h|abbr=on|0}}||10.4 sec|| {{convert|4.1|km/L|abbr=on}}<ref>{{cite web|url=https://www.automobile-catalog.com/make/chrysler/imperial_12gen_chrysler/imperial_12gen_hardtop_coupe_chrysler/1972.html |title= 1972 Chrysler Imperial full range specs}}</ref>
|-
![[Rolls-Royce Corniche]]
|{{convert|240|PS|kW bhp|1|abbr=on}}||{{convert|190|km/h|abbr=on|0}}||9.7 sec|| {{convert|5.1|km/L|abbr=on}}<ref>{{cite web |url=https://www.automobile-catalog.com/make/rolls-royce/corniche_convertible/corniche_convertible/1978.html |title=1978 Rolls-Royce Corniche (for Europe ) specs review |publisher=Automobile-catalog.com |access-date=2019-04-30 }}{{Dead link|date=February 2025 |bot=InternetArchiveBot |fix-attempted=yes }}</ref><ref>{{cite web|url=http://www.classicandperformancecar.com/rolls-royce/corniche-i/1228/1971-1987-rolls-royce-corniche-i |title=1971-1987 ROLLS-ROYCE Corniche I specifications |work=Classic and Performance Car |date=2014-10-16 |access-date=2018-09-26}}</ref>
|-
![[Jaguar E-Type|Jaguar XKE Series III V12]]
|{{convert|254|PS|kW bhp|1|abbr=on}}|| {{convert|217|km/h|abbr=on}}||6.8 sec|| {{convert|5.5|km/L|abbr=on}}<ref>{{cite web|url=http://www.automobile-catalog.com/make/jaguar/e-type_3/xke_3_fhc_22/1972.html |title=1972 Jaguar XK-E Series III 2+2 Coupe full range specs |publisher=Automobile-catalog.com |access-date=2018-09-26}}</ref>
|-
![[Citroën SM]]
| {{convert|170|PS|kW bhp|1|abbr=on}}|| {{convert|220|km/h|abbr=on|0}}||8.5 sec|| {{convert|8|km/L|abbr=on}}<ref>{{cite web |url=http://www.automobile-catalog.com/car/1972/127805/citroen_sm.html |title=Citroen SM |access-date=2017-01-16 |archive-url=https://web.archive.org/web/20160513080553/http://www.automobile-catalog.com/car/1972/127805/citroen_sm.html |archive-date=2016-05-13 |url-status=dead }}</ref>
|-
! [[Mercedes-Benz R107 and C107|Mercedes-Benz 450 SLC]]
| {{convert|192|PS|kW bhp|1|abbr=on}}|| {{convert|202|km/h|abbr=on}}||9.5 sec|| {{convert|6.5|km/L|abbr=on}}<ref>{{cite web|url=http://www.automobile-catalog.com/make/mercedes-benz/c-107/c-107/1973.html |title=1973 Mercedes-Benz SLC C107 Coupe full range specs |publisher=Automobile-catalog.com |access-date=2018-09-26}}</ref>
|-
![[Jensen Interceptor]]
| {{convert|254|PS|kW bhp|1|abbr=on}}|| {{convert|217|km/h|abbr=on}}||7.5 sec|| {{convert|4.4|km/L|abbr=on}}<ref>{{cite web|url=http://www.automobile-catalog.com/make/jensen/interceptor_2gen/interceptor_iii/1972.html |title=1972 Jensen Interceptor Mk III full range specs |publisher=Automobile-catalog.com |access-date=2018-09-26}}</ref>
|-
![[BMW E9|BMW 3.0CS]]
|{{convert|180|PS|kW bhp|1|abbr=on}}|| {{convert|200|km/h|abbr=on|0}}||7.9 sec|| {{convert|7.6|km/L|abbr=on}}<ref>{{cite web|url=http://www.automobile-catalog.com/make/bmw/2500-3_0cs_e09/2500-3_0cs_e09/1972.html |title=1972 BMW 2500-3.0 CS E9 Coupe full range specs |publisher=Automobile-catalog.com |access-date=2018-09-26}}</ref>
|-
![[Stutz Blackhawk]]
|{{convert|432|PS|kW bhp|1|abbr=on}}|| {{convert|210|km/h|abbr=on|0}}||8.4 sec|| {{convert|3.3|km/L|abbr=on}}
|}

===Eldorado Biarritz===
Unlike the Cadillac [[Cadillac De Ville|De Ville]] and [[Cadillac Fleetwood Brougham|Fleetwood Brougham]],  both of which were available with the opulent ''d'Elegance'' [[Trim level (automotive)|luxury trim package]], Cadillac did not offer a similar option for the Eldorado until late in the 1976 model year with the introduction of the ''Biarritz'' (a name last used for the 1964 Eldorado convertible) package. The car featured unique exterior trim and the rear half of the cabriolet roof was covered with a heavily padded landau vinyl top accented with large "opera" lights. Wheel covers with centers matching the car's paint color were also featured. The 1977–1978 interior featured "pillowed"-style, "tufted" leather seating, while the 1976 interior did not. As with other Cadillac models, special order contrasting upholstery piping and exterior colors were available.

The 1978 ''Biarritz'' option packages consisted of the Eldorado Custom ''Biarritz'' ($1,865); with Astroroof ($2,946); with sunroof ($2,746) and Eldorado Custom ''Biarritz'' Classic ($2,466); with unique two-tone 
paint and Astroroof ($3,547); with sunroof ($3,347).

The Eldorado Custom ''Biarritz'' Classic was produced only for 1978; available only in two-tone Arizona beige/demitasse brown, exactly 2000 were built, consisting of 1,499 with no Astroroofs or no sunroofs; 475 with Astroroofs; 25 with sunroofs and one was produced with a unique power sliding T-top.<ref>{{cite web |url=http://automotivemileposts.com/eldorado/eldorado1978biarritzclassic.html |title=1978 Cadillac Fleetwood Eldorado Custom Biarritz Classic |publisher=Automotivemileposts.com |date=1978-04-11 |access-date=2011-10-08 |archive-date=2011-07-21 |archive-url=https://web.archive.org/web/20110721174110/http://automotivemileposts.com/eldorado/eldorado1978biarritzclassic.html |url-status=dead }}</ref> Only nine of the latter are known to have been retrofitted by the American Sunroof Company under the direction of the Cadillac Motor Car Division.{{citation needed|date=January 2015}}

The ''Biarritz'' package proved to be popular and was available on the Eldorado through the 1991 model year. In 1992, it was replaced with the touring coupe (ETC) option.<ref>{{cite web |url=http://oldcarbrochures.org/index.php/NA/Cadillac/1992-Cadillac/1992-Cadillac-Full-Line-Prestige-Brochure/1992-Cadillac-Full-Line-Prestige-31 |title=1992 Cadillac Full Line Prestige-31 |publisher=Oldcarbrochures.org |access-date=2018-09-26 |archive-url=https://web.archive.org/web/20180723034049/http://oldcarbrochures.org/index.php/NA/Cadillac/1992-Cadillac/1992-Cadillac-Full-Line-Prestige-Brochure/1992-Cadillac-Full-Line-Prestige-31 |archive-date=2018-07-23 |url-status=dead }}</ref> Some of the original ''Biarritz'' styling cues vanished during the 1980s, such as the brushed stainless steel roof cap (1979–85) and the ultra-plush "pillowed" interior seating designs, but the ''Biarritz'' remained unique.

<gallery widths="200" heights="140">
File:1971eldofront.jpg|1971 Eldorado convertible
File:1971 Cadillac Eldorado - Flickr - denizen24.jpg|1971 Cadillac Fleetwood Eldorado Coupe
File:1972 Eldorado.JPG|1972 Cadillac Fleetwood Eldorado Coupe
File:1973 Cadillac Eldorado Convertible Classic-Gala 2022 1X7A0216.jpg|1973 Eldorado convertible
File:74 Eldo Convert.jpg|1974 Eldorado convertible
File:1975 Cadillac Eldorado (9684064256).jpg|1975 Cadillac Eldorado convertible
File:1975 Cadillac Eldorado El Deora (24639300106).jpg|1975 Cadillac Eldorado coupe interior
File:1976 Cadillac Eldorado (13404764104).jpg|1976 Cadillac Eldorado Convertible
File:Cadillac Eldorado -- 05-23-2012.JPG|1978 Cadillac Eldorado coupe with custom vinyl top
File:1978 Cadillac Eldorado Biarritz.png|1978 Cadillac Eldorado Biarritz (rear)
</gallery>

==Tenth generation (1979–1985)==
{{Infobox automobile
| name = Tenth generation
| image = 1979 Cadillac Eldorado (14176870659).jpg
| production = 1979–1985
| assembly = [[Linden Assembly]], [[Linden, New Jersey]], U.S.
| wheelbase = {{convert|114.0|in|mm|0|abbr=on}}
| layout = [[Front-engine, front-wheel-drive layout|Longitudinal front-engine, front-wheel drive]]
| platform = [[GM E platform|E-body]]
| width = {{convert|71.4|in|mm|0|abbr=on}} (1979–1981)<br />{{convert|71.5|in|mm|0|abbr=on}} (1982–83)<br />{{convert|70.6|in|mm|0|abbr=on}} (1984–85)
| length = {{convert|204.5|in|mm|0|abbr=on}} (1982–85)<br />{{convert|204.0|in|mm|0|abbr=on}} (1979–1981)
| height = {{convert|54.3|in|mm|0|abbr=on}} (1982–1985)<br />{{convert|54.2|in|mm|0|abbr=on}} (1979–1981)
| body_style = 2-door [[coupé]]<br />2-door [[convertible (car)|convertible]] (1984–1985 only)
| engine = {{ubl|4.1 L  ''[[Buick V6 engine#LC4|LC4]]'' [[V6]]|4.1 L ''[[Cadillac High Technology engine#HT-4100|HT-4100]]'' [[V8 engine|V8]]|5.7 L ''[[Oldsmobile V8 engine#350|Rocket 350]]'' V8|5.7 L ''[[Oldsmobile Diesel engine#LF9|LF9]]'' V8 diesel|6.0 L ''[[Cadillac V8-6-4 engine|L62]]'' V8}}
| related = {{ubl|[[Buick Riviera]]|[[Oldsmobile Toronado]]}}
| transmission = {{ubl|3-speed [[automatic transmission|automatic]] (1979–81)|4-speed w/electronic overdrive (1982–1985)}}
| caption = 1979 Cadillac Eldorado
}}

The tenth generation Eldorado debuted in 1979, continuing to share the same platform with the [[Buick Riviera]] and [[Oldsmobile Toronado]]. This model was successful in terms of annual production totals compared with the ninth and eleventh generations.<ref name="CadillacForums">{{cite web|url=https://www.cadillacforums.com/threads/eldorado-production-numbers-from-start-to-finish.91641/|title=Eldorado Production numbers from start to finish|publisher=Cadillacforums.com |date=30 November 2006 |access-date=9 September 2020}}</ref>  The model set an all-time Eldorado sales record in 1984 of 77,806 (coupes and convertibles), accounting for about 26% of all Cadillacs sold.

===Design===
[[Independent suspension|Independent rear suspension]] was adopted for the first time, helping retain rear-seat and trunk room in the smaller body. The most notable styling touch was an extreme notchback roofline. The Eldorado "Biarritz" model featured a stainless-steel roof cap (similar to the 1957–1958 Eldorado Brougham), wider chrome trim along the top of the doors and rear quarter glass, and additional fender spear moldings. The Eldorado featured frameless door glass, and rear quarter windows, similar to those from 1967 to 1970, without a thick "B" pillar. The Eldorado and the redesigned 1980 [[Cadillac Seville]] shared [[front wheel drive]] platforms. The cars were not true hardtops, as the rear quarter windows were fixed.

The Cadillac Trip Computer was available on the 1979 Eldorado. First offered on the 1978 [[Cadillac Seville]], it replaced the conventional analog speedometer and fuel gauge with digital readouts. A 12-button panel mounted above the climate control allowed for selection of operating data to be displayed on a third display located where the Coolant Temp light would be on the analog cluster. Just as with the Seville, this option was not available with the diesel engine as it required interfacing to the gasoline 350 engine's analog ECU. 1980 saw a major electrical architecture change to support the new DEFI 368 drivetrain which was GM's first implementation of Digital Fuel Injection. This included a new electronic climate control interface as well as an MPG Sentinel display which made the Trip Computer mostly superfluous. A digital speedometer cluster was not yet available with this new system, but would return for 1981, along with a significant number of hardware improvements. Unlike the Trip Computer speedometer, this version used vacuum fluorescent displays and allowed for selection of either English or Metric units. This option was offered on both Eldorado and Seville through 1985.

===Engines===
The tenth generation Eldorado was available with multiple engine variants; four gasoline and one diesel option. In 1981, Cadillac offered a V6 for the first time in its history, a 4.1 liter engine sourced from Buick.

====350====
For 1979, the analog-injected [[Oldsmobile V8 engine#350|Oldsmobile 350 ci]] (5.7 L) gasoline V8 was carried over from the Seville model. California-emission models differed in that they had a modified ECU, special catalyst system, and an O2 sensor for closed-loop operation. This would also be the standard CA-spec engine for 1980.

====368====
In 1980, the standard engine was a [[Cadillac V8 engine#368|Cadillac 368]] ci (6.0L) gasoline V8. This was a reduced bore, reduced stroke version of the Cadillac 425/472/500 family. This was GM's first implementation of digital fuel injection and required an extensive redesign of the vehicle's electrical architecture, which was shared with the newly designed Seville. Unlike the previous multi-port arrangement on the 350, this system used [[Manifold injection#Single-point injection|throttle body injection]].

====4.1 L====
For 1982, Cadillac unveiled the 4.1 L "High Technology" [[Cadillac High Technology engine#HT-4100|HT-4100]] engine. The performance was modest relative to older generations of the Eldorado. It possessed {{cvt|125|hp|kW|0}}, powering the car to a top speed of {{cvt|106|mph|km/h|0}} and a 0-60 time of 13.8 sec, with fuel economy of {{convert|8.5|km/L|abbr=on}}<ref>{{cite web|url=https://www.automobile-catalog.com/make/cadillac/eldorado_1979-1985/eldorado_1979-1985_hardtop/1982.html |title=1982 Cadillac Eldorado 4.1L V-8 HT-4100 (aut. 4) specs |publisher=Automobile-catalog.com |access-date=9 September 2020}}</ref>

This lightweight engine, used in all full-size 1982 Cadillacs (except limousines) was a wet-sleeve design that mated cast-iron heads to an aluminum block. Many HT-4100s were replaced under warranty due to aluminum oil pump failure, cam bearing displacement, intake gasket failure (scrubbing of the bi-metal interface), weak aluminum block castings and bolts pulling the aluminum threads from the block. {{Citation needed|date=May 2009}}

====350 diesel====
The Oldsmobile [[Oldsmobile Diesel engine|350 ci diesel]] engine was available as an option all years, but due to its unreliable reputation<ref name="Survivor!">{{cite web|url=https://jackbaruth.com/?p=15211|title=1980 Cadillac Eldorado Biarritz Diesel: A Survivor!| first = Tom | last = Klockau|publisher=Riverside Green |date=5 April 2019 |accessdate=9 September 2020}}</ref> and the inversion of gasoline to diesel pricing during the early 1980's, its popularity waned. Initially rated 126 PS (93 kW; 125 hp), design changes and reduction in compression ratio reduced its output to {{convert|106|PS|kW bhp|1|abbr=on}}.  A diesel-equipped 1982 model with this engine had a top speed of {{convert|155|km/h|abbr=on}} and a 0-60 time of 17.3 sec, with fuel economy of 25 mpg.

====V8-6-4 L62====
For 1981 only, the Eldorado was fitted with a [[Cadillac V8 engine#V8-6-4|V8-6-4]] [[variable displacement]] variant of the [[Cadillac V8 engine#368|368]] engine. 4 solenoids fitted to the cylinder heads allowed deactivation of two or four cylinders under light load conditions, and only when in high gear. The system was dropped due to customer complaints regarding vibration, and failure to gain agreement with the NHTSA on appropriate [[Corporate Average Fuel Economy|government fuel economy (CAFE) ratings]], defeating the initial intent of the system. On CAFE-exempt vehicles, such as the limousine and commercial chassis, the V864 system continued to be used through 1985.

The 368 engine itself was very durable, its only modification being solenoids attached to the heads, but the electronics, software and valve switch gear were the source of continued customer complaints. Since modulated displacement mode only operated when the transmission was in high gear, disabling the system was as simple as unplugging a single connector, leaving the engine to operate on all eight cylinders.<ref name="HMN">{{cite web |last=Koch |first=Jeff |date=April 2008 |title=Cadillac V-8-6-4 A variable displacement engine that tried to split the difference between power and economy |url=https://www.hemmings.com/stories/article/cadillac-v-8-6-4 |accessdate=9 September 2020 |publisher=Hemmings Motor News}}</ref><ref name="86Curb">{{cite web|url=https://www.curbsideclassic.com/curbside-classics-american/curbside-classic-1986-cadillac-eldorado-swing-and-a-miss/|title=Curbside Classic: 1986 Cadillac Eldorado – A Swing And A Miss|publisher=Curbside Classic| first=Tom | last = Klockau |date=11 June 2017 |accessdate=9 September 2020}}</ref>

====V6 LC4====
In pursuit of additional CAFE credits, the [[Buick V6 engine#LC4|Buick LC4]] V6 engine was available for 1981 and 1982.<ref>https://www.carfolio.com/cadillac-eldorado-biarritz-v6-514800 "1982 Cadillac Eldorado Biarritz V6 specifications", carfolio.com</ref> It came with a 4-barrel carburetor, had an 8.0:1 compression ratio, and produces {{cvt|125|hp|kW|0}} at 4,000&nbsp;rpm and {{cvt|205|lbft|Nm|0}} at 2,000&nbsp;RPM. As was the case with diesel-equipped Eldorado models, the MPG Sentinel was not available, though a modified digital speedometer cluster was offered, which removed the Fuel Range display.

===Trim options===
{{anchor|Eldorado Touring Coupe}}
From 1982 through 1985, Cadillac offered the Eldorado ''Touring Coupe'', with heavier duty "touring" suspension, close-ratio steering, aluminum alloy wheels, larger blackwall white-letter tires, cloisonné hood ornament, body-colored headlamp and taillamp bezels, wide-ribbed rocker moldings and available in limited color options.<ref>{{Cite web |title=The Eldorado Touring Coupe - 1982-85 |url=https://ht4100.com/ETC.html |access-date=2025-01-21 |website=ht4100.com}}</ref>

These Eldorados were marketed as "drivers' cars" and included reclining front bucket seats with lumbar support, leather-wrapped steering wheel and a center console. The diesel engine was not available with this package.

Late in the 1985 model year, an optional "Commemorative Edition" package was announced, in honor of the last year of production for this version of the Eldorado. Exclusive features included gold-tone script and tail-lamp emblems, specific sail panel badges, gold-background wheel center caps, and a ''Commemorative Edition'' badge on the steering wheel horn pad. Leather upholstery (available in dark blue or white, or a two-tone with dark blue and white) was included in the offering, along with a dark blue dashboard and carpeting. Exterior colors were cotillion white or commodore blue.

=== Return of the Eldorado Convertible ===
In 1984, eight years after Cadillac built its last convertible, the division temporarily resumed production of a convertible version of the Eldorado Biarritz. This car was an official Cadillac production option convertible converted by American Sunroof Corporation (ASC, Inc.) offered only for the 1984–85 model years coded by vehicle VIN. The car was 200 pounds (91&nbsp;kg) heavier, featuring the same interior as the Eldorado Biarritz coupe. The 1985 model year was also the last for the aftermarket non-factory option conversions by ASC, Inc.

Prior to the official 1984 and 1985 Eldorado convertibles marketed by Cadillac, some 1979–1983 Eldorados were made into coach convertibles by independent coachbuilders e.g. ASC inc., Custom Coach (Lima, Ohio—this coachbuilder turned a few 1977 and 1978 Eldorados into convertibles) and [[Hess & Eisenhardt]]. The same coach-builders also offered Buick Riviera and Oldsmobile Toronado convertibles.

===Production totals===
{| class="wikitable sortable"
|+Production totals<ref name="CadillacForums"/>
|-
!Year
!Model
!Units
|-
!1979
|Eldorado coupe
|67,436
|-
!1980
|Eldorado coupe
|52,685
|-
!1981
|Eldorado coupe
|60,643
|-
!1982
|Eldorado coupe
|52,018
|-
!1983
|Eldorado coupe
|67,416
|-
!1984
|Eldorado coupe
|74,506
|-
!1984
|Eldorado convertible
|3,300
|-
!1985
|Eldorado coupe
|74,101
|-
!1985
|Eldorado convertible
|2,200
|-
|}

<gallery widths=200 heights=142>
1983 Cadillac Eldorado Coupe in Hatteras Blue Metallic, front right.jpg|1983 Cadillac Eldorado coupe
Cadillac Eldorado 5.7 Diesel (13168948215).jpg|1984 Cadillac Eldorado (rear)
Cadillac Eldorado Biarritz 1982 (15723275039).jpg|1982 Cadillac Eldorado Biarritz coupe
1984-85 Eldorado Convertible.jpg|1984–1985 Cadillac Eldorado convertible
Cadillac Eldorado Biarritz convertible white-red Florida 6.jpg|1984 Cadillac Eldorado Biarritz convertible interior
</gallery>
{{clear}}

==Eleventh generation (1986–1991)==
{{Infobox automobile
| name       = Eleventh generation
| image      = 7th Cadillac Eldorado.jpg
| production = 1986–1991
| assembly   = [[Detroit/Hamtramck Assembly]], [[Hamtramck, Michigan]], U.S.
| wheelbase  = {{convert|108.0|in|mm|0|abbr=on}}
| length     = {{convert|191.4|in|mm|0|abbr=on}} (1989–1991)<br /> {{convert|191.2|in|mm|0|abbr=on}} (1986–88)
| layout     = [[Front-engine, front-wheel-drive layout|Transverse front-engine, front-wheel drive]]
| platform   = [[GM E platform|E-body]]
| width      = {{convert|72.4|in|mm|0|abbr=on}} (1989–1991)<br />{{convert|71.7|in|mm|0|abbr=on}} (1986–88)
| height     = {{convert|53.2|in|mm|0|abbr=on}} (1989–1991)<br />{{convert|53.7|in|mm|0|abbr=on}} (1986–88)
| body_style   = 2-door [[coupé]]
| engine       = {{ubl|4.1&nbsp;L ''[[Cadillac High Technology engine|HT-4100]]'' [[V8]] (1986–1987)|4.5&nbsp;L ''[[Cadillac High Technology engine#4.5|4.5]]'' V8 (1988–1990)|4.9&nbsp;L ''[[Cadillac High Technology engine#L26 4.9|L26]]'' V8 (1991)}}
| related      = [[Buick Riviera]]<br />[[Oldsmobile Toronado]]
| transmission = 4-speed [[GM 4T60 transmission|THM440-T4]] [[automatic transmission|automatic]]
| designer = [[Irv Rybicki]]
}}
As a key factor influencing the design of the 11th generation Eldorado, GM relied on a consultant's prediction that gasoline would rise sharply by 1986. Concluding that smaller luxury cars would be in demand, General Motors downsized its full-sized cars for the second time for model year 1985;<ref name="86Curb" /> higher fuel prices did not materialize, however.

By then, Cadillac had downsized the 11th generation Eldorado substantially — by {{convert|16|in}} in length and {{convert|350|lb|kg|0}} in weight — as with its [[badge engineering|badge engineered]] siblings, the [[Oldsmobile Toronado]], [[Buick Riviera]], and [[Cadillac Seville]].

Buick and Oldsmobile's variants carried Buick's 3.8-liter V6 engine, while the Eldorado continued with the 4.1-liter V8.<ref name="86Curb" /> A single fiberglass transverse leaf spring was used for its fully independent rear suspension. Four wheel disc brakes were standard, as was electronic leveling control.<ref name="gen11" /> The completely redesigned instrument panel featured a full digital display. The shift lever was moved from the steering column to the center console. New redesigned bucket seats had lumbar support. The  Biarritz option featured an upgraded interior with genuine walnut trim on the instrument panel, center console and door panels.<ref name="gen11">{{cite web
 |title     = 1991 Cadillac Eldorado
 |publisher = Hagerty.com
 |author    =
 |date      =
 |url       = https://www.hagerty.com/valuation-tools/cadillac/eldorado/1991/1991-cadillac-eldorado}}</ref>

1985's convertible body style was dropped to make way for the forthcoming [[Cadillac Allanté]] roadster. For the first time, the Eldorado no longer featured a hardtop body style, instead using framed door glass. Despite its much smaller exterior size, the Eldorado's interior volume remained comparable to the previous generation.<ref name="86Curb" />

The 11th generation carried a base price of $24,251 (~${{Format price|{{Inflation|index=US-GDP|value=24251|start_year=1985}}}} in {{Inflation/year|US-GDP}}), nearly 16% higher than the 1985 model. Between the high price and the downsizing, sales of the Eldorado dropped 72% from the final year of the previous generation.<ref name="CadillacForums" /> One automotive observer noted the 11th generation Eldorado was too small for Cadillac's traditional customers, yet unable to attract buyers from the intended competitors, e.g., [[BMW]] and [[Mercedes-Benz]].<ref name="86Curb" />

===Model year changes===

====1987====
Aside from a longer, 5 year/50,000 mile warranty, the Eldorado was virtually unchanged for 1987, though with a price drop, to $23,740 (${{formatnum:{{Inflation|US|23740|1987}}}} in {{Inflation-year|US}} dollars {{inflation-fn|US}}). The standard suspension, with new taller 75 series (previously 70) tires and hydro-elastic engine mounts, was slightly retuned for a softer ride, while the optional ($155) "touring suspension" (${{formatnum:{{Inflation|US|155|1987}}}} in {{Inflation-year|US}} dollars {{inflation-fn|US}}), with deflected-disc strut valves and 15-inch alloy wheels, remained for those desiring a firmer ride. As part of a federal requirement to discourage "chop-shop" thieves, major body panels were etched with the [[VIN]]. Also new, a combination cashmere cloth with leather upholstery, and locking inertia seat belt reels for rear seat passengers, which allowed for child-seat installation in the outboard seating positions in back. The formal cabriolet roof was added this year. Available for $495 on the base Eldorado, it featured a padded covering over the rear half of the roof, and turned the rear side glass into smaller opera windows. One of the Eldorado's most expensive standalone options was the [[Motorola]] cellular telephone mounted inside the locking center arm rest. Priced at $2,850 (${{formatnum:{{Inflation|US|2850|1987}}}} in {{Inflation-year|US}} dollars {{inflation-fn|US}}), it had been reworked this year for easier operation, and featured a microphone mounted between the sun visors for hands-free operation. Additionally, the telephone featured a radio mute control: activated when the telephone and radio were in use simultaneously, it automatically decreased the rear speaker's audio volume, and over-rode the front music speakers to be used for the hands-free telephone.

====1988 facelift====
[[File:1988 Cadillac Eldorado Front Grille.jpg|thumb|1988 Cadillac Eldorado front grille]]
The 1988 Eldorado received a facelift and sales nearly doubled from the previous year, up to 33,210. Essentially, the revision lengthened the rear fender end-caps, making the Eldorado {{convert|3|in|mm|0|abbr=on}} longer than in 1987; the wheelbase, doors, roof, and glass remained relatively unchanged and body panels were revised. Standard equipment included Cadillac's new 155 horsepower 4.5 liter V8. A comprehensive anti-lock braking system, developed by Teves, was newly available. Both front and rear fenders featured creased blade elements that rose slightly proud of the adjacent sheetmetal. Revisions included a new grille above the revamped front bumper, slightly protruding three-sided tail lamps and a revised rear bumper and trunk lid. Bladed 14-inch aluminum wheels remained standard, while an optional 15-inch snowflake-pattern alloy wheel was included with the touring suspension option.

The 1988 interior featured wider front seat headrests and swing-away door pull handles, replacing pull-straps. New upholstery patterns, along with shoulder belts for outboard rear-seat passengers, appeared for both base and Biarritz models, with the latter returning to the tufted-button design last seen in the 1985 Biarritz. A new vinyl roof option, covering the full rooftop, featured a band of body color above the side door and windows – similar to the style used until 1978. This replaced the "cabriolet roof" option, which covered the rear half of the roof, introduced just a year earlier. With the Biarritz option package, the padded vinyl roof covered just the rear quarter of the rooftop, behind the rear side windows.  Biarritz also included slender vertical opera lamps, as in 1986 and 1987, but now added a spear molding (similar to the style used on the 1976–1985 Eldorado Biarritz) that ran from the base of the rooftop, continuing horizontally along the door, and down to the front fender tip. The standard power antenna was moved from the front passenger fender to the rear passenger fender. Nineteen shades of exterior paint were available (two more than the previous year). Prices increased this year – to $24,891 (${{formatnum:{{Inflation|US|24891|1988}}}} in {{Inflation-year|US}} dollars {{inflation-fn|US}}). This 1988 facelift would be the last until the Eldorado was completely redesigned for 1992.

====1989====
For 1989, the optional automatic rearview mirror transitioned from an electrically operated mechanical tilting mechanism to the new [[electrochromic]] style, using a clear fluid filled between the mirror and a thin sheet of glass, which tints on activation. A new exterior color, White Diamond, brought the color choices up to 18.  Gone were the 14-inch wheels, as the previously optional 15-inch "snowflake"-style aluminum wheel, introduced the previous year, was made standard for the base Eldorado. A compact disc player, available only with the Delco [[Bose Corporation|Bose]] Gold Series music system, was a new option this year, as were reversible floor mats, and gold-plated ornamentation ("Cadillac" grille and trunk scripts, sail panel ornaments, deck lid engine plaque, trunk lock cover, tail lamp emblems, and available wire wheel cover wreath and crest). New standard items included an express-down module for the driver's window, electronic oil-life indicator, a more powerful Delco Freedom II battery, a revised factory warranty, and GM's PASS (Passive Automotive Security System) KEY theft-deterrent system, which activated the fuel system based upon a coded pellet within the ignition key. Previously optional items that were now added as standard equipment included a cassette player with graphic equalizer, remote fuel filler door release, and front license plate mounting. To deplete existing warehouse stock, the brushed chrome lower bodyside accent molding, optional through last year, was added as standard equipment for 1989 (revamped moldings would appear in 1990).{{citation needed|date=November 2022}} New high-gloss Birdseye Maple trim (replacing the satin-finished American walnut used from 1986 to 1988) on the instrument panel and console was standard on Eldorado Biarritz, and a $245 option on the base Eldorado. The full cabriolet roof option, roughly simulating a convertible top, was offered in limited colors. Prices rose to $26,738 (${{formatnum:{{Inflation|US|26738|1989}}}} in {{Inflation-year|US}} dollars {{inflation-fn|US}}). Production slipped slightly to 27,807 (including 7,174 Biarritz models). Similarly, the restyled [[Buick Riviera]] grew 11 inches this year and had a production increase from 8,625 cars in 1988 to 21,189 in 1989.

====1990====
[[File:1990 Eldo TC rear.jpg|thumb|1990 Cadillac Eldorado touring coupe]]A driver-side airbag was introduced as standard equipment, deleting the telescoping steering column but retaining tilt capability. Where cruise controls had been previously mounted on the center of the steering wheel, the air bag required a smaller diameter steering wheel, and controls moved to the turn signal lever. A ''Touring Coupe'' trim level was introduced later in the model year. A new multi-point fuel injection replaced the throttle-body style from the MY88, and horsepower increased from 155 to 180, requiring premium fuel. The front suspension stabilizer shaft was revised; "Snowflake" alloy wheels were standard, with an optional cast aluminum wheel design, not available with the touring suspension package; and the tire jack received a dedicated carpeted storage compartment in the trunk.

Interior revisions for 1990 included new molded seat trim panels, front bucket seats featuring additional lateral and lumbar support, [[French seam]]s, and revised front headrests. Full leather upholstery (formerly leather and cloth) became standard on the Biarritz trim level, and the base model lost their seat-back map pockets. The optional cellular telephone was no longer available, and the vinyl center armrest was revised. The electronic climate control received three automatic and two manual settings. The optional leather upholstery package for the base model now included a power passenger seat recliner. 1990 models incorporated the former "Eldorado option package" as standard equipment, including revised carpeted floor mats, body-color door edge guards, illuminated driver and passenger visor, trunk mat, and an illuminated entry system. Previously optional equipment became standard equipment, including the rear window defogger with heated outside mirrors and bodyside accent striping.

New options included a central-unlocking feature (from the outside door locks, using the key) added to the automatic door locks. For model year 1990, the rear deck lid carried a port fuel injection emblem, featured a chrome handle above the license plate opening and rear safety reflectors moved from the bumper onto the panel below the decklid.  A charcoal-color vinyl strip accented the chrome bumper and bodyside moldings, while the front bumper guards changed from body-color to charcoal.

[[MSRP]] for 1990 base Eldorado was $28,885 (${{formatnum:{{Inflation|US|28885|1990}}}} in {{Inflation-year|US}} dollars {{inflation-fn|US}}) and for the Biarritz trim level an additional $3,180 (${{formatnum:{{Inflation|US|3180|1990}}}} in {{Inflation-year|US}} dollars {{inflation-fn|US}}). Production dropped to 22,291 cars, about 1/3 of which were the Biarritz package and 1,507 were the Eldorado touring coupe package.

====1991====
1991 was the final year for the eleventh-generation Eldorado.  New this year was Cadillac's 4.9 liter port fuel injection V-8 engine with GM's 4T60-E electronically controlled four-speed transmission. The Cadillac-exclusive "viscous converter clutch" provided smoother shifting under hard acceleration. Engine controls were monitored by the GMP4 powertrain control module (PCM), an on-board 64-kilobyte computer. A new exhaust set-up with a wider catalytic converter reduced restriction by 38% from 1990, while the 0-60&nbsp;mph speed went from 9 seconds in 1990 to 8.2 for 1991. Revised engine mounts decreased cabin noise and vibration. Adaptive suspension, marketed as [[Computer Command Ride]] (CCR), automatically adapted the suspension mode to vehicle speed for improved handling and ride comfort; this system was standard on Eldorado and optional on most other Cadillac models. The Bosch II anti-lock braking system, previously a $925 option, was made standard, as well as a more powerful 140-amp alternator.

A $309 electrically heated windshield was a new option, as was the "security package" ($480 on base Eldorado, no-charge on Biarritz or Touring Coupe) which now included remote keyless entry along with automatic door locks with central unlocking. A $480 theft-deterrent system was also optional on the base Eldorado and available for no-charge on the Biarritz or Touring Coupe. The windshield washer system was revised.

Base price for the 1991 Eldorado was $31,245 (${{formatnum:{{Inflation|US|31245|1990}}}} in {{Inflation-year|US}} dollars {{inflation-fn|US}}), a $2,400 increase from 1990. Several items became no-charge options on the base Eldorado, including a full vinyl roof covering or full-cabriolet (convertible-look) roof (an otherwise $1,095 option), leather upholstery with power passenger recliner, and the Delco-[[Bose Corporation|Bose]] sound system, available with CD or cassette. For 1991, the $2,050 (~${{Format price|{{Inflation|index=US|value=2050|start_year=1991}}}} in {{Inflation/year|US}}) Touring Coupe and the $3,180 Biarritz trim packages included a power moon roof and Delco-Bose stereo system at no additional charge. 1991 marked the final year for the Eldorado Biarritz. Production dropped to 16,212 (including 2,249 touring coupe models), the lowest for any Eldorado model since 1966.

===Production totals===
{| class="wikitable sortable"
|+11th Generation Production<ref name="CadillacForums"/>
|-
!Year
!Model
!Units
|-
!1986
|Eldorado coupe
|21,342
|-
!1987
|Eldorado coupe
|17,775
|-
!1988
|Eldorado coupe
|33,210
|-
!1989
|Eldorado coupe
|27,807
|-
!1990
|Eldorado coupe
|22,291
|-
!1991
|Eldorado coupe
|16,212
|-
|}

{{clear}}

==Twelfth generation (1992–2002)==
{{Infobox automobile
| name = Twelfth generation
| image = 2001 Cadillac Eldorado Sport Coupe, 08-10-2022.jpg
| model_years = 1992–2002
| assembly = [[Detroit/Hamtramck Assembly]], [[Hamtramck, Michigan]], U.S. (1992–2000)<br />[[Lansing Craft Center]], [[Lansing, Michigan]], U.S. (2000–2002)
| wheelbase = {{convert|108.0|in|mm|0|abbr=on}}
| length = {{convert|202.2|in|mm|0|abbr=on}} (1992–94)<br />{{convert|200.6|in|mm|0|abbr=on}} (1995–2002)
| layout = [[Front-engine, front-wheel-drive layout#Front-engine transversely mounted / Front-wheel drive|Transverse front-engine, front-wheel drive]]
| platform = [[GM E platform|E-body]]
| width = {{convert|75.5|in|mm|0|abbr=on}}
| height = {{convert|54.0|in|mm|0|abbr=on}}
| body_style = 2-door [[coupé]]
| engine = {{ubl|4.9 L ''[[Cadillac High Technology engine#L26 4.9|L26]]'' [[V8 engine|V8]] (1992–1993)|4.6 L ''[[Northstar engine series#L37|L37]]'' V8 (1993–2002, ETC)|4.6 L ''[[Northstar engine series#LD8|LD8]]'' V8 (1994–2002, ESC)}}
| related = [[Buick Riviera]]<br />[[Oldsmobile Toronado]]
| successor = [[Cadillac CTS|Cadillac CTS coupe]]
| transmission = 4-speed [[GM 4T60-E transmission|4T60-E]] [[automatic transmission|automatic]]<br />4-speed [[GM 4T80 transmission|4T80-E]] [[Automatic transmission|automatic]]
| designer = Dick Ruzzin (1990)<ref>{{cite web|url=http://autosofinterest.com/2012/10/04/design-notes-interview-with-d-ick-ruzzin/|archive-url=https://web.archive.org/web/20130319033948/http://autosofinterest.com/2012/10/04/design-notes-interview-with-d-ick-ruzzin/|url-status=usurped|archive-date=March 19, 2013|title=Design Notes: Interview with Dick Ruzzin|work=Autos of Interest}}</ref>
| caption = 2001 Cadillac Eldorado Sport Coupe
}}

The twelfth and final generation Eldorado introduced for 1992 was {{convert|11|in|mm|0|abbr=on}} longer and {{convert|3|in|mm|0|abbr=on}} wider than the previous generation, featuring frameless window glass. Marketed in either '''ESC''' (Eldorado Sport Coupe) and '''ETC''' (Eldorado Touring Coupe) trim,<ref>{{cite web|url=http://www.new-cars.com/2002/cadillac/cadillac-eldorado.html |title=2002 Cadillac Eldorado review, specs |publisher=New-Cars.com |access-date=2009-10-04}}</ref> the former featured a stand-up hood ornament, Cadillac crests on the rear roof pillar, 16-inch multi-spoke alloy wheels, and concealed exhausts.

The Eldorado was offered with the  {{convert|200|hp|abbr=on}} [[Cadillac High Technology engine#L26 4.9|4.9&nbsp;L L26]] engine for model years 1992-1993, and subsequently with the [[Cadillac Northstar engine|Northstar]] [[V8 engine|V8]] in both 270 and {{convert|295|hp|abbr=on}} variants.

Standard equipment included cloth upholstery, [[Zebrawood|Zebrano]] wood trim, 6-way power front bucket seats, climate control, digital instrumentation, column-mounted gear selector, and three-position electronically adjustable "Speed-Sensitive Suspension". The ETC featured a grille-mounted Cadillac wreath and crest, "Touring Coupe" scripts on the doors, integrated fog lamps, flat-face 16-inch alloy wheels, and quad exhaust outlets. Its standard equipment included gathered leather seating areas, marketed as ''Nuance'' leather; 12-way power seats; [[Zebrano]]-trimmed floor console with gear selector, analog instrumentation, and specially tuned suspension.
* '''1993:''' The Touring Coupe received a two-spoke steering wheel, body-color grille, and 6-way seats, previously 12-way. An Eldorado Sport Coupe model was introduced, featuring the new Northstar V8 and quad-tipped exhaust, full-floor console with gear selector (without Zebrano trim), and touring-tuned adaptive suspension, now marketed as "Road Sensing Suspension". A passenger airbag became standard equipment on all models, the previously matte-black exterior side mirrors from 1992 were now body-color, and revised 16-inch chromed alloy wheels became available.
* '''1994:''' Eldorado and Eldorado Touring Coupe trims were offered. The steering wheel was revised to a four-spoke design. Both models now had quad exhausts. A new "Sport Appearance Package" option allowed the buyer to order most of the Touring Coupe's cosmetic features on the base Eldorado.
* '''1995:''' The Eldorado featured revised front and rear bumpers, side cladding, chrome eggcrate grille, and seven-spoke alloy wheels.
* '''1996:''' The interior received a larger analog gauge cluster, relocated climate control system, and updated stereo faces. While the four-spoke steering wheel was a carry-over, new steering wheel-mounted duplicate climate and audio controls. The Touring Coupe offered perforated in leau of the gathered leather on other models. The Touring Coupe also received rain-sensing wipers marketed as "Rainsense", and once again a body-color radiator grille. Daytime running lights were standard.
* '''1997:'''  Microprocessor integration of engine, [[Traction control system|traction control]], Stabilitrak [[electronic stability control]], [[steering]], and adaptive [[continuously variable road sensing suspension]] (CVRSS) became standard, marketed as [[Integrated Chassis Control System]] — similar to the Toyota/Lexus [[Vehicle Dynamics Integrated Management]] (VDIM).
* '''2000:''' With the [[Buick Riviera]] and [[Oldsmobile Toronado]] [[badge engineering|rebadged]] variants discontinued and the [[Cadillac Seville|Seville]] and [[Cadillac Deville|Deville]] sedan no longer sharing platforms, the Eldorado became GM's last production K- or E-body vehicle, and assembly was moved to the [[Lansing Craft Center]].
* '''2002:''' As Eldorado's 50th model year, GM announced 2002 would be its last. To mark the end of the nameplate, a limited run of 1,596 cars in red or white—the colors available on the original 1953 convertible—were produced in three batches of 532, signifying the Eldorado's first year of production. These last cars featured specially tuned exhaust notes imitating the models, and a dash-mounted plaque indicating each car's sequence in production. Production ended on April 22, 2002,<ref>{{cite web |last=Flores |first=Dan |title=Cadillac Commemorates the End of an Era as the Last Eldorado Rolls Off the Assembly Line |work=Press release |publisher=[[General Motors|GM]] Media Online |date=2002-04-22 |url=http://archives.media.gm.com/us/cadillac/en/news/press/020422_last_eldo.html |access-date=2007-08-12 |archive-date=2011-10-26 |archive-url=https://web.archive.org/web/20111026095258/http://archives.media.gm.com/us/cadillac/en/news/press/020422_last_eldo.html |url-status=dead }}</ref> and the last Eldorado produced was donated to the Cadillac Museum in honor of Cadillac dealer [[Don Massey (car dealer)|Don Massey]].<ref>{{cite web|url=https://autoweek.com/article/car-news/end-era-last-cadillac-eldorado-rolls-assembly-line|title=End of an era: The last Cadillac Eldorado rolls off assembly line|date=23 April 2002 |publisher=Autoweek|access-date=2019-05-14}}</ref> The [[Lansing Craft Center]] retooled to manufacture the [[Chevrolet SSR]].

<gallery widths=200 heights=135>
1992 Cadillac Eldorado Touring Coupe in Medium Garnet Red Metallic, Front Right, 06-29-2019.jpg|1992 Cadillac Eldorado Touring Coupe
1992 Cadillac Eldorado Touring Coupe in Medium Garnet Red Metallic, Rear Right, 06-29-2019.jpg|1992 Cadillac Eldorado Touring Coupe (rear)
1999 Cadillac Eldorado in Mulberry, front right.jpg|1999 Cadillac Eldorado
2002 Eldorado Collector Series front.JPG|2002 Cadillac Eldorado Collector Series
2002 Eldorado Collector Series in Alpine white.JPG|2002 Cadillac Eldorado Collector Series (rear)
</gallery>
{{clear}}

== See also ==
* [[Lincoln Mark Series]]
* [[Ford Thunderbird]]

==References==
===Notes===
{{Reflist}}

===Bibliography===
{{refbegin}}
* {{Holmes-UltConv | pages=44–49}}
{{refend}}

==External links==
{{Commons category|Cadillac Eldorado}}
* [https://web.archive.org/web/20150531054443/http://forum.cadillacamerica.com/ Official Cadillac America Forum]
'''Product information on:'''
* [http://archives.media.gm.com/division/cadillac/products/02cadillac/eldorado02.html 2002],
* [http://archives.media.gm.com/division/cadillac/products/01cadillac/eldorado/eldorado01.html 2001] and
* [http://archives.media.gm.com/division/cadillac/products/00cadillac/eldorado/eldorado00.html 2000] models.
* [http://showautoreviews.com/cadillac-eldorado-1959-fashion-and-power-combination Cadillac Eldorado 1959 Review]

{{Cadillac timeline 1930-1979}}
{{Cadillac timeline 1980 to date}}
{{Cadillac vehicles}}

[[Category:Cadillac vehicles|Eldorado]]
[[Category:Cars introduced in 1953]]
[[Category:Cars discontinued in 2002]]
[[Category:Convertibles]]
[[Category:Coupés]]
[[Category:Front-wheel-drive vehicles]]
[[Category:Rear-wheel-drive vehicles]]
[[Category:Sedans]]
[[Category:Vehicles built in Lansing, Michigan]]
[[Category:1960s cars]]
[[Category:1970s cars]]
[[Category:1980s cars]]
[[Category:1990s cars]]
[[Category:2000s cars]]
[[Category:Motor vehicles manufactured in the United States]]
[[Category:Personal luxury cars]]