The Buick Grand Sport of 1965-1970 was a true muscle car marvel, sneaking a 401-cubic-inch V8 under the hood despite a 400-inch limit—talk about bending the rules! By 1967, the Grand Sport brought along its siblings, the GS 340 and GS California, all dressed to impress with fancy badges. Fast forward to 1970, the GS 455 flexed its 455-cubic-inch muscles, offering a Stage 1 that could make even the Chrysler Hemis sweat. And let’s not forget the GSX Stage 1 in Saturn yellow—it was the fashion icon of the muscle car world!
