The Road Runner made its market debut as a no-frill, skills-and-thrills 1968 model-year B-body Plymouth muscle car. By then, it was already preceded by the Belvedere, Satellite, and GTX, plus the ...

Completely restyled for '68, the Plymouth sedan's slim B-pillar and frameless door glass gave the low-line coupe a hardtop look. The hood came with a pair of "sporty" bulges, but functional air-scoops ...