2002 pontiac grand prix gtp supercharged specs
2002 Pontiac Grand Prix GTP Supercharged Specs: Comprehensive Review & Analysis
The 2002 Pontiac Grand Prix GTP stands as one of the most compelling budget-friendly performance sedans of the early 2000s. Equipped with GM's renowned L67 3.8-liter supercharged V6, it delivered sports-sedan performance at a price far below imported rivals. This article breaks down every specification, weighs its real-world advantages and drawbacks, and helps you understand whether this classic GM grand tourer still deserves your attention today.
Key Takeaways
- Engine: 3.8L L67 V6 with a GM Roots-type low-pressure supercharger producing 240 horsepower and 260 lb-ft of torque.
- Performance: 0–60 mph in approximately 6.8 seconds with a quarter-mile time around 15.2 seconds — genuinely quick for a front-wheel-drive family sedan of its era.
- Fuel Economy: Estimated 17 mpg city / 26 mpg highway, a reasonable compromise for a supercharged V6 in a vehicle of its size and weight.
- Transmission: 4-speed 4T65-E automatic; reliable when maintained but no longer competitive with modern 6- or 8-speed units.
- Value: As a used purchase, the GTP offers exceptional performance-per-dollar, though prospective buyers must inspect for supercharger health and transmission condition.
- Bottom Line: The 2002 Grand Prix GTP remains one of the best performance values on the used-car market, provided the mechanicals are sound.
2002 Pontiac Grand Prix GTP Engine & Performance Specifications
Powertrain Overview
| Specification | Detail |
|---|---|
| Engine Family | GM LG platform – L67 variant |
| Displacement | 3.8 L (231 cu in) |
| Configuration | 90° V6, overhead valve (OHV) |
| Supercharger Type | GM Roots-type, low-pressure (6–8 psi boost) |
| Horsepower | 240 hp @ 5,200 rpm |
| Torque | 260 lb-ft @ 4,000 rpm |
| Aspiration | Sequential port fuel injection + mechanically driven blower |
| Transmission | 4-speed automatic (4T65-E) |
| Drivetrain | Front-wheel drive (FWD) |
| 0–60 mph | Approx. 6.8 seconds |
| Quarter Mile | Approx. 15.2 seconds @ ~93 mph |
| Top Speed (governed) | Approx. 130 mph |
| Curb Weight | Approx. 3,520 lbs (1,596 kg) |
| Power-to-Weight Ratio | Approx. 14.7 lbs/hp |
Fuel Economy & Emissions
| Metric | Rating |
|---|---|
| City MPG | 17 mpg |
| Highway MPG | 26 mpg |
| Combined MPG | 20 mpg |
| Fuel Tank Capacity | 17.0 gallons |
| Recommended Fuel | Regular unleaded (87 octane) |
| Emissions Standard | LEV (Low Emission Vehicle) – California; ULEV available |
Chassis & Suspension Dimensions
| Dimension | Measurement |
|---|---|
| Wheelbase | 112.0 inches |
| Length | 204.1 inches |
| Width | 72.6 inches |
| Height | 56.9 inches |
| Front Track | 61.1 inches |
| Rear Track | 61.4 inches |
| Front Suspension | MacPherson strut with coil springs |
| Rear Suspension | Multi-link independent with coil springs |
| Brakes (Front) | 11.6-inch vented disc |
| Brakes (Rear) | 11.0-inch solid disc |
| Steering | Power-assisted rack-and-pinion |
| Wheel Size | 16 × 7.0 inches (GTP alloy) |
| Tire Size | P225/60R16 |
Advantages of the 2002 Grand Prix GTP
Superior Performance for the Price
When equipped with the L67 supercharged engine, the Grand Prix GTP easily outperformed contemporaries like the Ford Taurus SES and Chevrolet Monte Carlo LS in straight-line acceleration. The 240-horsepower output, paired with a curb weight under 3,600 pounds, produced genuinely thrilling acceleration for a front-wheel-drive sedan. The torque-rich nature of the Roots supercharger meant strong pull from as low as 1,500 rpm — ideal for merging and passing without downshifting.
Proven & Affordable Powerplant
The 3.8L V6 lineage dates back to 1982, and by 2002 it was