General Motors created an ingenious marketing tool with the 1953 Motorama traveling shows. The Motoramas were GM's personal automobile shows which garnered extensive publicity that was not shared with any of their competitors. All three of the upscale divisions of General Motors-Oldsmobile, Buick and Cadillac, had prestige convertible dream cars that were dramatic in design but close enough to the production models that they were ready to manufacture. Named Fiesta, Skylark and Eldorado, they entered limited production during the year. Based on the Series 62 convertible, the Eldorado was an upscale version of the already expensive Cadillac and, as a result, the production numbers were significantly smaller than those for the Series 62 Cadillacs.

This 1957 Eldorado Biarritz is a great car. The black convertible top is very clean and is fitted with a white fiberglass parade boot when it is in the lowered position. The complementing red and white interior presents well and matches the quality seen in the rest of the car. The engine bay shows signs of use but is generally clean and presentable and the chassis and underbody are in similar condition. It is equipped with the standard Eldorado features of power steering, power brakes and power seat, as well as a Wonderbar signal-seeking radio, sabre wheels, and fresh-air heater. Overall, this is a pretty older restoration, a nice driver that is ready to use and enjoy.