The Valiant Duster Coupe was the main catalyst of Plymouth's growing sales in 1970, while the Road Runner lost ground, primarily as the market was ready to leave big engines and large cars behind.

The 1974 Plymouth Road Runner arrived just as the classic muscle era was running out of road, yet it stubbornly held on to the traits that had made Detroit’s street bruisers famous. Power ratings were ...

A genuine RM23-coded 1972 Plymouth Road Runner finished in factory TB3 Petty Blue, complete with its numbers-matching 340/727 combo and extensive original paperwork, is for sale in Texas as a ...