What is the difference between a GT and GTP?

Answer 1

With the upcoming many models of Pontiac's line of performance cars, I will answer the GT-GTP question specifically for the 1997-2003 model years of the Grand Prix. * The SE is the entry level Grand Prix, and is equipped with the 3.1 liter engine or the 3.4 liter engine, depending on the year, and is capable of approximately 161 horsepower in 1997-1999, and 175 horsepower from 2000 on. * The GT is the high-output, normally-aspirated (non-turbo or supercharged) level of the Grand Prix, and is equipped with the 3.8 liter engine, which produces 200 horsepower and 225 ft.-lbs. of torque * The GTP is the supercharged high-output level of the Grand Prix, which produces 240 horsepower and 280 ft.-lbs. of torque, and I believe larger brake calipers. Also to be noted, the 2004-2006 models of the GT and GTP each have an additional 20 horsepower, and after 2002, the Grand Prix was no longer offered in a 2-door coupe model. Hope this helps!