1970 Buick GSX

Buick’s GSX proved that, during the muscle car wars, even GM’s upmarket divisions weren’t immune to shouting about their performance prowess. Witness the 1970 Buick GSX. No GSX was ever common. It was positioned as a gentleman’s express, a top-of-the-line muscle car from the upper echelons of GM’s food chain.

GSX was largely an