Introduced for the 1968 model year as a more affordable alternative to the GTX, the Plymouth Road Runner became an instant hit. By 1971, when Chrysler discontinued its high-compression v8 engines, the ...

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.