GSX

Midway through that year, Buick debuted its "GSX" model, which was an appearance package rivaling that of the GTO "Judge". GSX colors ran the spectrum that year, if that range included just yellow and white. Subsequent GSX models offered a variety of colors to go with the GSX signature hood blackout treatment and the swept wide pin striping vaguely reminiscent of the famous Buick "sweepspear". GSX models could be ordered with 350, 455, or 455 Stage 1 engines, and were outfitted with the usual GS options such as dual hood scoop hood with functioning "ram-air" intake, and dual exhaust. Horsepower ratings for the Stage 1 455s were a relatively mild 360 hp (or 370 depending on sources), but featured a pavement-tearing 510 ft·lbf (690 N·m) of torque at 2200 rpm, good to propel the relatively weighty GS455 Stage 1 equipped cars to quarter-mile times under 13.4 seconds. Buick halted GSX production after the 1972 model year.
The prototype GSX survived the show circuit, and was a fully functioning car that beat the odds to survive not only the usual showcar life of "construction-display-destruction", but also the life of an ordinary car, as it was sold from a dealership after being on display for some time. The car survives to this day, is restored to its original condition, licensed and ready to hit the road. Article Directory : en.wikipedia.org