.1956 Chrysler 300B: The Chrysler 300B was a luxury performance car that was produced by Chrysler in 1956. It featured a pillarless hardtop design, which allowed the rear side windows to roll down completely.
1962 Pontiac Catalina: The Pontiac Catalina was a full-size car that was produced by Pontiac from 1959 to 1981. The 1962 model year featured a four-door hardtop convertible option, which was available in both six and eight-cylinder versions.
1966 Ford Mustang: The Ford Mustang is a renowned muscle car that has been in production since 1964. In 1966, Ford introduced a four-door hardtop convertible option for the Mustang.
1967 Studebaker Avanti II: The Studebaker Avanti II was a luxury grand-touring car that was produced by Studebaker from 1965 to 1966. The 1967 model year saw the introduction of a four-door hardtop convertible option, which was available with either a V8 or a supercharged V8 engine.
1970 Buick Riviera: The Buick Riviera is a personal luxury car that was produced by Buick from 1963 to 1999. The 1970 model year featured a four-door hardtop convertible option, which was powered by a 455 cubic inch V8 engine.
These are just a few examples of four-door hardtop convertibles that have been produced over the years.
