The sculpted rear-end styling on the 1957 Eldorado Seville and Biarritz wasn't new — it was a callback to the Cadillac "Interceptor," an obscure post-war show prototype most people have never heard of.
Median 81 hp across 30 similar cars
Lead trim: Eldorado Seville / Biarritz 365 cu in V8 (1957) · up to 310 hp
Cadillac Eldorado Seville / Biarritz1957–1958
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Nobody in Burbles has spotted a Cadillac Eldorado Seville / Biarritz yet. See one on the street, point the app at it, and the first card is yours — with your @handle permanently credited on this page.
FactThe sculpted rear-end styling on the 1957 Eldorado Seville and Biarritz wasn't new — it was a callback to the Cadillac "Interceptor," an obscure post-war show prototype most people have never heard of.
Cadillac was restyled and re-engineered for 1957, with stylistic updates in 1958. The 1957 Eldorado (Biarritz convertible and Seville hardtop, Series 62 on the C-body with a 129.5 in wheelbase) received an exclusive rear-end design with a low, downswept fenderline capped by pointed in-board fins, broad sculptured stainless-steel lower-quarter beauty panels blending into split rear wraparound bumpers, and the model name above a V-shaped rear deck ornament; four specially built four-door hardtop Eldorado Sevilles were also made in 1957. For 1958 it received quad headlights, a new hood and front bumper with dagmars mounted lower and further apart, a full-width jeweled grille, ten vertical chrome slashes ahead of the open rear wheel housings and crest medallions on the tailfins, as GM promoted its 50th year with Anniversary models across its brands. Power was the 365 cu in (6.0 L) OHV V8 with a 4-speed Hydra-Matic; the Series 62 was 222.1 in long in 1957 and 223.4 in in 1958, 80.0 in wide and 59.1 in high; the page gives no power ratings.
Collectors Spotted in the Cadillac Eldorado Lineage
No member has published a public street spot of the Cadillac Eldorado yet — the First · Worldwide stamp is wide open.
Trims & Figures
2 published trims in the catalogue. A blank is a figure not recorded, not zero.
| Trim | Years | Engine | Power | Torque | 0–60 | Drive | Gearbox | MSRP |
|---|---|---|---|---|---|---|---|---|
| Eldorado Seville / Biarritz 365 cu in V8 (1957) | 1957–1957 | 6.0 L V8 | 300 hp | — | — | RWD | — | — |
| Eldorado Seville / Biarritz 365 cu in V8 (1958) | 1958–1958 | 6.0 L V8 | 310 hp | — | — | RWD | — | — |
Owning one
We don’t estimate running costs for a car like this. What it costs depends on its condition, its specialist and how it is driven, and an average would mislead.
Owners’ builds
Nobody has claimed one yet.
Photographs
By 1997 this Eldorado had standard electronic stability control, traction control and adaptive suspension all talking to each other — tech Wikipedia compares directly to Lexus's vaunted VDIM system.
Cadillac shrank the Eldorado by 16 inches and 350 pounds in 1986, betting on a gas-price spike that never came — sales cratered 72% from the outgoing model, and buyers found it too small for Cadillac people yet still not a BMW.
1984 was the best year the Eldorado nameplate ever had: 77,806 sold, more than one in four Cadillacs that left a showroom that year.
When Cadillac supplied the 1973 Indy 500 pace car, it built 566 convertible replicas — just 33 ever saw the track, and the other 533 went one-per-dealership nationwide.
For exactly two years — 1967 and 1968 — the Eldorado hid its headlights behind moving covers, the only Cadillac ever built that way before regulations shut the idea down.
The 1965-66 Fleetwood Eldorado marked the end of an era — the last rear-wheel-drive Eldorado before Cadillac switched the nameplate to front-wheel drive.
The 1963 Eldorado Biarritz was the first Fleetwood-bodied convertible Cadillac had built in 22 years — the body style had vanished when the V16 Series 90 went out of production in 1941.
For 1961, Cadillac quietly demoted the Eldorado Biarritz convertible — it was reclassified as a mere subseries of the De Ville line, a status that stuck for years.
This Eldorado Biarritz had a second career thirty years later as Maurice Minnifield's car on the 1990s TV series Northern Exposure.
The 1959-60 Eldorado Brougham wasn't built in Detroit at all: Cadillac shipped the chassis by boat to Savona, Italy, where Pinin Farina mated the hand-built bodies in Turin before shipping the finished cars back across the Atlantic.
The 1957 Eldorado Brougham carried one of the first all-transistor car radios ever built — a 13-transistor Delco unit, and it came standard, not optional.
The sculpted rear-end styling on the 1957 Eldorado Seville and Biarritz wasn't new — it was a callback to the Cadillac "Interceptor," an obscure post-war show prototype most people have never heard of.
The Eldorado's fluted aluminum side panels were distinctive enough that Reynolds Aluminum commissioned a one-of-a-kind Eldorado coupe to show them off.
The entire run of the original 1953 Eldorado was just 532 cars — 0.5% of Cadillac's sales that year, making Cadillac's halo convertible rarer than almost anything else on the lot.
Rivals
Same body, same money, other badges — tap any card to flip.
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Switching to fuel injection let this V8 finally shed its trademark bonnet bulge — and only 405 of these flat-hooded Series 5 cars were built before the whole model retired in 1989.
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