Plymouth discontinued the GTX as a stand-alone model in 1971, but the badge survived on the range-topping Road Runner through ...
Plymouth Road Runner GTX represents the final year of the true high-performance Road Runner models. The GTX package was not a ...
Discontinued as a stand-alone model in 1971, the GTX soldiered on through 1974 as a high-performance trim of the Plymouth ...
The car sold well, despite a price that was nearly double that of BMW’s in-house M5, and only ceased production when BMW ...