The golden age of muscle cars came to a halt in the early 1970s after new emissions regulations rendered high-compression big-block V8 engines obsolete. It's been more than 50 years since then, but ...
Introduced in 1970 and built in only a few hundred units through 1972, the Buick GSX is one of the rarest muscle cars from the golden. Conversely, the Plymouth Duster 340 is a rather common rig.