in the muscle car's glorious days of the mid- and late-sixties (and crack of seventies), Detroit made a great deal (and put a great deal of effort) out of its high-strung, gas-guzzling intermediates.

Introduced for the 1968 model year as Plymouth's entry-level muscle car, the Road Runner soldiered on beyond the golden era. It remained in production as a stand-alone nameplate through 1975 and as a ...