1963 Cadillac Eldorado Biarritz

2dr Convertible

8-cyl. 390cid/325hp 4bbl

#1 Concours condition#1 Concours
#2 Excellent condition#2 Excellent
#3 Good condition#3 Good

$68,300*

equal0%
#4 Fair condition#4 Fair

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1959-1966 Cadillac Eldorado stats
Number produced **
** Number produced is specific to this year and configuration.

Photos

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1963 Cadillac Eldorado Biarritz 2dr Convertible Courtesy of Hyman Ltd.
1963 Cadillac Eldorado Biarritz 2dr Convertible Courtesy of Hyman Ltd.
1963 Cadillac Eldorado Biarritz 2dr Convertible Courtesy of Hyman Ltd.
1963 Cadillac Eldorado Biarritz 2dr Convertible Courtesy of Hyman Ltd.
1963 Cadillac Eldorado Biarritz 2dr Convertible Courtesy of Hyman Ltd.
1963 Cadillac Eldorado Biarritz 2dr Convertible Courtesy of Hyman Ltd.
1963 Cadillac Eldorado Biarritz 2dr Convertible Courtesy of Hyman Ltd.
1963 Cadillac Eldorado Biarritz 2dr Convertible Courtesy of Hyman Ltd.
1963 Cadillac Eldorado Biarritz 2dr Convertible Courtesy of Hyman Ltd.
1963 Cadillac Eldorado Biarritz 2dr Convertible Courtesy of Hyman Ltd.
1963 Cadillac Eldorado Biarritz 2dr Convertible Courtesy of Hyman Ltd.
1963 Cadillac Eldorado Biarritz 2dr Convertible Courtesy of Hyman Ltd.
1963 Cadillac Eldorado Biarritz 2dr Convertible Courtesy of Hyman Ltd.
1963 Cadillac Eldorado Biarritz 2dr Convertible Courtesy of Hyman Ltd.
1963 Cadillac Eldorado Biarritz 2dr Convertible Courtesy of Hyman Ltd.
1963 Cadillac Eldorado Biarritz 2dr Convertible Courtesy of Hyman Ltd.
1963 Cadillac Eldorado Biarritz 2dr Convertible Courtesy of Hyman Ltd.
1963 Cadillac Eldorado Biarritz 2dr Convertible Courtesy of Hyman Ltd.
1963 Cadillac Eldorado Biarritz 2dr Convertible Courtesy of Hyman Ltd.
1963 Cadillac Eldorado Biarritz 2dr Convertible Courtesy of Hyman Ltd.
1963 Cadillac Eldorado Biarritz 2dr Convertible Courtesy of Hyman Ltd.
1963 Cadillac Eldorado Biarritz 2dr Convertible Courtesy of Hyman Ltd.
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Model overview

Model description

The 1959 Cadillac cars suffered in comparison to earlier cars. GM “panicked” upon seeing the fabulously low 1957 Chrysler lines, and implemented a program to reduce the height of all their cars. Since engineering work varied from division to division, it was decreed that the 1959 Buick would form the basis for much of the new Fisher bodies to be used by all GM divisions. The styling studios at Cadillac seemed to be the least constrained of all since a new style was planned for 1959 anyway. 1959 Cadillacs are well known for their massive fins, a direct response to the fins that appeared on 1957 Chrysler products. Since Cadillac originated the style in 1949, it was deemed necessary to win the “fin wars.” Despite sharing basic inner door pressings with Buicks and the rest of the GM lines, these Cadillacs were distinctive and massive. The big Caddy V-8 was stroked out to 390 cubic inches, with as much as 345 horsepower in the Eldorado line vs. 325 in others. Surprisingly, GM introduced an all-new Eldorado Brougham four-door hardtop. Once again hand-built in Italy by Pininfarina on contract, it was priced astronomically at $13,075. The car, styled in Detroit by Cadillac, sold in single digit numbers (99). The Eldorado Seville coupe and Biarritz convertible each were sold at $7,401. Interestingly, the Brougham had far lower, unique tail fins. 1960 cars were broadly similar, with somewhat lower tailfins, and the Pininfarina-built Brougham sold 101 units. Many say the build quality of the Pininfarina cars wasn’t nearly as good as the previous Detroit built cars, but of course, any Eldorado Brougham is highly collectible. 1961 cars were reskinned, and the Eldorado line was cut down to the Biarritz convertible starting that year. Body shells were common between all non-limousine Cadillacs, and the Eldorado simply became the name for the top-of-the-line convertible through 1966. For 1964, the exclusively Cadillac engine was punched out to 429 cubic inches, with a subsequent power increase to 340 horsepower. But torque was king, and torque meant accelerative force – which increased to 480 foot pounds, up 50 from the year before. The all-new Turbo-Hydramatic 400 automatic transmission also became available in 1964, a huge improvement over the old four-speed Hydramatic automatics used previously. The 1965 Cadillacs were entirely restyled with various technical improvements. 1966 was a carry-over year.

Vehicle specifications

  • Shipping Weight4640 lbs
  • Vehicle Length223 in
  • Wheelbase - Inches129.5 in
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Common Questions

The value of a 1963 Cadillac Eldorado Biarritz can vary greatly depending on its condition, mileage, options, and history. Typically, you can expect to pay around $68,300 for a 1963 Cadillac Eldorado Biarritz in good condition with average spec.

The highest selling price of a 1963 Cadillac Eldorado Biarritz at auction over the last three years was $154,000. The highest prices are usually reserved for rare or exceptionally well-maintained examples with desirable features or modifications and excellent history.

The lowest selling price of a 1963 Cadillac Eldorado Biarritz at auction over the last three years was $17,325. The lowest prices are usually paid for examples that have extensive maintenance needs, differ greatly from their original configuration, or have accident histories or title problems.

In the last three years there have been 9 1963 Cadillac Eldorado Biarritzs sold at public auction.

The most recent auction sale of a 1963 Cadillac Eldorado Biarritz was $65,709 on January 13, 2025 by All Collector Cars.

Many factors can increase a car's value including excellent condition, exceptional originality, a recent restoration, low mileage, unique provenance, desirable options, popular or unique color choices, and excellent maintenance records. Upgrades and modifications that enhance performance or aesthetics can also add value.

Factors that can decrease a car's value include unusually high mileage, poor maintenance history, visible wear and tear, accidents or damage, title issues, and gaps in ownership history. Additionally, less popular color choices and extensive modifications that don't appeal to a broad audience can reduce value.

Mileage plays a significant role in a classic car’s value. Lower mileage usually increases value because it indicates a higher degree of originality, is rarer, and suggests less wear and tear. However, cars with exceptionally low mileage may also have maintenance needs due to lack of use. Whether someone should pay more for a vehicle with lower miles will depend on how they plan on using it, and the vehicle's specific condition.

The value of modified cars differs widely based on the type and quality of modifications. While some modifications can significantly increase value, especially performance enhancements and high-quality custom work, others may not add much or could even detract from the car’s value if they appeal to only a limited audience.

All prices shown here are based on various data sources, as detailed in About Our Prices. The Hagerty Price Guide is for informational purposes only and is not intended as financial advice. More information on how forecast models are calculated can be found on Forecasted Values page. For additional information and a complete description of benefits, visit hagerty.com/legal. Purchase of insurance not required for membership in HDC. Hagerty, Hagerty Valuation Tools & Hagerty Drivers Club are registered trademarks of The Hagerty Group LLC, ©2025 The Hagerty Group, LLC. All Rights Reserved. The Hagerty Group, LLC is a wholly owned subsidiary of Hagerty, Inc.