The Buick Y-Job is the first concept car — a 1938 Buick convertible built to test design ideas, not sell units. Designed by Harley Earl, it used a Buick Super chassis and featured power-operated hidden headlamps, electric windows, and styling cues that defined Buick for decades. It became Earl’s daily driver after public debut. It changed how mass manufacturers develop cars: by treating design as a public-facing experiment.
The 1963 Buick Riviera is the origin point of GM’s personal luxury car strategy. It is not a sports car. It is not a sedan. It is a two-door hardtop built on a new platform, named for a coastline, engineered for quiet authority.
The Buick Wildcat is a full-size car produced from 1963 to 1970. It was positioned between the LeSabre and the larger C-body Electra. It offered two-door hardtop, convertible, and four-door hardtop sedan body styles. It replaced the 1962 Invicta subseries and was itself replaced by the Centurion in 1971.