Though it was a full-size coupe, the new Grand Prix was transformed into one of Pontiac's first muscle cars months after its introduction when the GM division added the 421 Super Duty engine to its ...

Pontiac's long run as an automaker began with the Six in 1926 and lasted through 2009, when the brand became a casualty of GM's bankruptcy proceedings. During its heyday, Pontiac produced potent and ...