
Buyer Resources
- 1978 Cadillac Eldorado Biarritz
- 425ci V8
- Electronic Fuel Injection
- 3-Speed Automatic
- FWD
- Colonial Yellow Exterior
- Yellow Interior
- Light Yellow Padded Landau Vinyl Roof
- Power Windows
- Power Seats
- Tilt & Telescopic Steering Wheel
- Factory AM/FM Stereo
- Automatic Climate Control
- Factory Wire Wheel Covers
- Factory Cadillac Telephone System
- Biarritz Luxury Trim Package
Extras Included in the Sale
- Original Owner's Manual
The 1978 Cadillac Eldorado Biarritz represents the height of Cadillac’s personal luxury coupe era, combining imposing styling, effortless V8 power, and an exceptional level of comfort and refinement. As the flagship Eldorado trim, the Biarritz added exclusive styling details and upscale appointments that set it apart from the standard model, creating one of Cadillac’s most recognizable luxury coupes of the late 1970s. Finished in Colonial Yellow with a matching Yellow leather interior, this example shows approximately 40,571 miles and features desirable period options including a factory Cadillac telephone system, Biarritz luxury trim, and formal padded roof treatment. This Eldorado Biarritz captures the distinctive character of an era when Cadillac represented the ultimate in American luxury motoring.
Exterior and Interior
The exterior of this 1978 Cadillac Eldorado Biarritz is finished in Colonial Yellow and showcases the dramatic proportions and formal styling that defined Cadillac’s flagship personal luxury coupe. The Biarritz trim adds unique exterior details including the padded Landau roof treatment, Biarritz badging, and upscale brightwork, complemented by factory wire wheel covers for a classic Cadillac appearance. The long hood, low roofline, and wide stance create the commanding presence expected from a late-1970s Eldorado. The interior of this 1978 Cadillac Eldorado Biarritz is appointed in Yellow leather and reflects Cadillac’s focus on comfort and luxury. The cabin features plush seating, woodgrain accents, power accessories, automatic climate control, and a driver-focused dashboard layout. A particularly notable feature is the factory Cadillac telephone system, an exclusive period luxury option that highlights the vehicle’s executive character. Additional convenience features include power seats, power windows, and a tilt and telescopic steering wheel.
Engine
Powering this 1978 Cadillac Eldorado Biarritz is a 425ci naturally aspirated V8 engine equipped with electronic fuel injection, delivering the smooth and effortless performance expected from Cadillac’s flagship coupe. Power is sent to the front wheels through a 3-speed automatic transmission, providing relaxed cruising capability and refined operation. Combining front-wheel-drive engineering with Cadillac’s traditional V8 power delivery, the Eldorado Biarritz represents a unique chapter in American luxury automobile history.
Inspection
Cadillac has spent decades building a reputation for American luxury, but its V-Series performance division has proven that the brand is equally capable of delivering serious driving excitement. The CT5-V carries that tradition forward, blending the sophistication of a modern luxury sports sedan with the performance engineering that has made the V-Series nameplate a favorite among driving enthusiasts. This 2026 Cadillac CT5-V Sedan AWD, showing just 2,412 miles, comes finished in elegant Deep Space Metallic over a Whisper Beige leather interior with Jet Black accents. Under the hood sits a 3.0L twin-turbocharged V6 producing 360 horsepower, paired with a 10-speed automatic transmission and an all-wheel-drive system. This particular example boasts a desirable selection of factory options, including the Technology Package, UltraView sunroof, ventilated front seats, red brake calipers, and sueded microfiber interior trim. With Magnetic Ride Control, Brembo front brakes, Super Cruise hands-free driving technology, and a premium AKG 15-speaker audio system, this CT5-V offers an impressive combination of exhilarating performance, advanced technology, and everyday luxury.
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