Fastback

1935 Stout Scarab

1949 Cadillac Series 62 rear

1950s Warszawa M20

1956 Porsche 356A

1967 AMC Marlin, a full-size 2-door fastback^[1]

1968 Ford Mustang, a pony car fastback^[2]

1978 Citroën CX 4-door fastback sedan

2006 Mercedes-Benz CLS55 AMG

Unlike the Tesla Model S 5-door liftback, the Tesla Model 3 seen here is a 4-door fastback sedan (i.e. with a separate trunk)

A fastback is an automotive styling feature, defined by the rear of the car having a single slope from the roof to the tail.^[3][4]

The kammback is not a fastback design with a roofline that tapers downward toward the car's rear before being cut off abruptly.^[5]

Some models, such as the Ford Mustang, have been marketed explicitly as fastbacks, often to differentiate them from other body styles (e.g. coupé models) in the same model range.