The Plymouth GTX

The Plymouth GTX was an American muscle car produced from 1967-1971. The 1967 Plymouth GTX, originally launched as the Belvedere GTX, shared it’s basic body design with the stylish Plymouth Belvedere. It was seen as a “gentleman’s muscle car” for it’s combination of muscle car power and built-for-comfort street car design. The stock engine for the GTX was the “Super Commando 440,” a 375 horsepower monster made by Plymouth. The state-of-the-art MOPAR 425 horsepower 426 Hemi engine was available as an upgrade.

In 1968, the GTX gained higher standing in the Plymouth range, as the addition of the lower-cost Road Runner made it their premium muscle car offering. The 1968 model featured a new grille, a new hood, and a new taillight design. It came with the same two engine options as the ’67 GTX. The interior was shared with the Plymouth Sport Satellite, featuring faux wood grain and other luxurious details. The 1968 GTX represented a perfect mixture of luxury and performance in the muscle car category.

The GTX remained relatively unchanged for 1969, featuring minor cosmetic alterations, and a few new performance upgrade options. The biggest change for 1969 was the addition of the 440+6 engine option; a tooled up 440 V8 rated at 390 bhp in comparison to the stock 440’s 375 bhp. By 1969 the GTX was beginning to decline in sales, as the cheaper Road Runner was offered in convertible and two-door options, placing it in closer competition to the GTX.

In 1970, the GTX body style became a bit less boxy, receiving rounder lines and sleeker styling. The convertible was not offered in 1970, and the same three engine options remained. By this time, the GTX’s luxury appointments made it heavier than the cheaper Road Runner, and in turn slower. Sales continued to decline as the Road Runner gained popularity, and a mere 7,748 GTX’s were sold in 1970.

By 1971 it was clear that the GTX was falling out of favor with the public, and it was a bit of a surprise that Plymouth released a 1971 model. The ’71 GTX featured relatively dramatic styling changes. It was now smaller, rode on a shorter wheelbase, and was considerably less boxy than even the 1970 model. It was still offered in the same three engine options, albeit with the base engine horsepower lowered by 5 bhp. Less than 3,000 were sold in 1971, and Plymouth ceased production of the GTX. In 1972 Plymouth made the GTX an upgrade option for the more popular Road Runner.

Contributed by Fossil Cars Staff Writer

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