In short, the GSX was Buick's contribution to the golden ... the rage when it launched in 1970. In fact, the '70 GSX with Stage-1-equipped 455 V8s churning out 510 lb-ft was the most torque ...

Iconic models such as the GSX Stage 1 wowed onlookers, though when the end came in the early 1970s, Buick stepped away from .