Introduced for the 1967 model year, the GTX was Plymouth's range-topping muscle car. Restricted to big-block power and equipped with many niceties as standard, it was marketed as "a gentleman's muscle ...
Built from 1968 to 1970, the AMC AMX is an oddball muscle car due to its two-seat layout. It wasn't very popular either, selling 19,134 units over three model years. This figure isn't low enough to ...