The 1955 Buick Roadmaster 4dr is a car that Buick built from 1936 to 1958. Roadmasters produced during this time range had the longest non-limousine wheelbase and shared their basic structure with entry-level Cadillacs and upscale Oldsmobiles. The Roadmaster was Buick’s flagship between 1946 and 1957. History In 1954 Buick Roadmasters shared the new General Read More …