Once you get inside a reworked instrument panel is more intuitively designed than the previous models, while its round gauges are finished in a classy satin metallic. New heating, ventilation and air-conditioning (HVAC) and audio controls in the center stack are now more flush fitting, enhanced by an improvement in plastics quality overall. Also improved, seat fabrics are said to feel richer to the touch as does the leather.
Luxury issues aside the supercharged GTP and GTP with the Competition Group package gets a reworked 5th generation Eaton supercharged V6 good for 15 additional horsepower over the current GTP, equaling 255-hp and 280 lb-ft of torque. While all Grand Prix's will benefit from GM's second generation Magnasteer, that should provide improved performance over the first generation system, Comp G customers will get a sport tuned version with quicker turn-in, as well as distinct 17-inch alloy wheels on V-rated tires, specific chassis tuning and StabiliTrak Plus - the most up-to-date version of GM's stability system.
What's more, F1 paddle shifters attached to the steering column will allow drivers to perform quick shifts on the upgraded 4-speed automatic transmission - that will also feature a console-mounted gear lever. GM calls its paddle shift system TAP, for 'Touch Activated Power'.
The new base Grand Prix will be called GT, as the old SE will be gone for 2004. Rather than the comparatively anemic 170-hp 3.7-L V6, the GT will receive a 200-hp 3.8-L V6 mated to a regular 4-speed automatic. While not as powerful as the GTP, most will find the GT an enthusiastic performer due much to its 225 lb-ft of on-demand torque.