The Plymouth GTX is an automobile introduced as the Belvedere GTX in 1967 by the Plymouth division. It was positioned as a mid-sized upscale-trimmed performance muscle car through the 1971 model year. Positioned as a "gentleman's" muscle car, standard was Plymouth's 440 cu in V8 engine called the "Super Commando 440" rated at 375 hp. Optional was Chrysler's 426 cu in Hemi. A heavy duty suspension system was also standard.
1971 was the final year for the GTX as a stand-alone model. For 1972 through 1974, any Road Runner ordered with the optional 440 was renamed Road Runner GTX and included the badging of both previous models.
