The 2004 Grand Prix is available as two primary models, GT and GTP, with variations of each. All are five-passenger, four-door, front-wheel-drive sedans with 3.8-liter V6 engines and four-speed automatic transmissions.
GT models come with a V6 engine that develops a comfortably adequate 200 horsepower (at 5200 rpm) and 225 foot-pounds of torque at 4000. Two versions of the GT model are available, GT1 ($21,760) and GT2 ($23,660). GT1 has less standard equipment. ABS, for instance, is optional ($600).
GTP ($25,860) gets a supercharged version of that same engine, increasing the ratings to 260 hp (at 5200 rpm) and 280 ft.-lbs. at 3600. The all-new Competition Group ($1395) is an option package for the GTP that adds a sports suspension system, StabiliTrak Sport, and TAPshift. StabiliTrak Sport is a vehicle-stability system tuned to provide maximum hands-on control during cornering. TAPshift (Touch Activated Power) includes a set of small paddles on the steering wheel allowing semi-manual shifting of the automatic transmission.