Four were available consisting of coupes or 4-door hardtops in Luxury or Regency trim. Production figures for 1966 were 35,399 hardtops and 2,759 convertibles. Anniversary Turbo Trans Ams are the hardtops and convertibles. A total of 2,405 300L hardtops and 440 convertibles were produced. Imperial Custom sedans now rode on a wheelbase longer than the 2-door hardtops. A total of 689 hardtops and eight convertibles were made. The side structure of the 4-door sedans and 2-door hardtops was made stronger. Some versions were only available in some forms as hardtops, others as convertibles. Sedans, hardtops, and a convertible were offered. Body style offerings followed 1959, with hardtops and sedans available. Four-door hardtops, dubbed Sport Sedans, were available (1966 through 1972). The W-29 option was not available on Cutlass Supreme notchback hardtops. Ambassadors were fully imported from Canada, apparently 16 two-door hardtops and 4 four-door sedans. Like all Chevy two-door hardtops, the body style was marketed as the Sport Coupe. All cars were two door hardtops.