The Plymouth Barracuda is a two-door pony car that was manufactured by Plymouth from 1964 to 1974.

The first-generation Barracuda, a two-door hardtop fastback, was based on the A-body platform (shared with the Valiant). The first generation featured distinctive wraparound back glass and was marketed from 1964 to 1966.

The second-generation Barracuda, built from 1967 to 1969, though still Valiant-based, was heavily redesigned. Two-door body designs were available in fastback, hardtop, and convertible versions.

The third generation, offered from 1970 to 1974, was no longer based on the A-body, but on the Chrysler E-body. The completely new design was similar to the Dodge Challenger and available in hardtop and convertible body styles. The Barracuda was discontinued after the 1974 model year.

The second-generation Barracuda, now a 108in (2,743mm) wheelbase A-body, still shared many components with the Valiant but was stylishly redesigned with model-specific sheet metal, and a convertible andhardtopcoupe joining the original fastback offering.

The new Barracuda was chiefly the work of John E. Herlitz and John Samsen, with Coke-bottle side contours and heavily revised front and rear ends. Design cues included a concave rear deck panel, wider wheel openings, curved side glass, and S-curved roof pillars on the hardtop.

The rear portion of the roof on the fastback coupe was more streamlined, and the back glass, raked at a substantially horizontal angle, was much smaller compared with that of the previous model. Also, the use of chrome trim on the external sheet metal was more restrained.

In 1969, Plymouth placed an increased emphasis on performance. A new option was the Mod Top, a vinyl roof covering with a floral motif, available in 1969 and 1970. Plymouth sold it as a package with seat and door panel inserts done in the same pattern.[

The 1969 version of the 383 engine was upgraded to increase power output to 330 bhp (246 kW), and a new trim package called ‘Cuda was released. The ‘Cuda, based on the Formula S option, was available with either the 340, 383 and, new for 1969, the 440 Super Commando V8.[citation needed] The successor for this generation of the Barracuda as a sporty Valiant was the 1970 Plymouth Duster.