In 1951, Plymouth offered the Cranbrook Belvedere as a low priced hardtop two-door until 1953.

Mass-production of hardtops began with General Motors, which launched two-door, pillarless hardtops in 1949 as the Buick Roadmaster Riviera, Oldsmobile 98 Holiday, and Cadillac Coupe de Ville. They were purportedly inspired