Introduced in 1970 and built in only a few hundred units through 1972, the Buick ... the GSX was actually more about looks than extra oomph. The bundle included a black chin spoiler, a rear ...

There is no better car to dictate the steep decline of muscle car performance during this time than the 1970s Buick ... 72 GSX include a black stripe across the length of the car, a rear spoiler ...