GXP is a designation for Pontiac performance ... it wasn't until 1997 that the GTP model which featured a supercharger would launch. The Grand Prix GTP isn't the only example of acronyms in ...

Not only did the new 5.3L V8 weigh less than the previous GTP 3.8L supercharged V6, it was also more powerful. The Grand Prix GXP could generate 303 horsepower and 323-pound feet of torque for a ...

For the past few generations top-of-the-line Grand Prix models have been equipped with forced induction via a supercharger, but for 2006 the top model won't be supercharged at all. During last ...