2003 Pontiac Grand Prix vs. 2012 GMC Sierra
To start off, 2012 GMC Sierra is newer by 9 year(s). Which means there will be less support and parts availability for 2003 Pontiac Grand Prix. In addition, the cost of maintenance, including insurance, on 2003 Pontiac Grand Prix would be higher. At 5,999 cc (8 cylinders), 2012 GMC Sierra is equipped with a bigger engine. In terms of performance, 2012 GMC Sierra (312 HP @ 4400 RPM) has 138 more horse power than 2003 Pontiac Grand Prix. (174 HP @ 5200 RPM) In normal driving conditions, 2012 GMC Sierra should accelerate faster than 2003 Pontiac Grand Prix. With that said, vehicle weight also plays an important factor in acceleration. 2012 GMC Sierra weights approximately 359 kg more than 2003 Pontiac Grand Prix. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2012 GMC Sierra is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2012 GMC Sierra. However, in wet, icy, snow, or gravel driving conditions, 2003 Pontiac Grand Prix, being front wheel drive (FWD), will offer much better control with better grip. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2012 GMC Sierra (506 Nm @ 4400 RPM) has 242 more torque (in Nm) than 2003 Pontiac Grand Prix. (264 Nm @ 4000 RPM). This means 2012 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2003 Pontiac Grand Prix.
Compare all specifications:
| 2003 Pontiac Grand Prix | 2012 GMC Sierra | |
| Make | Pontiac | GMC |
| Model | Grand Prix | Sierra |
| Year Released | 2003 | 2012 |
| Body Type | Sedan | Pickup |
| Engine Position | Front | Front |
| Engine Size | 3130 cc | 5999 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 174 HP | 312 HP |
| Engine RPM | 5200 RPM | 4400 RPM |
| Torque | 264 Nm | 506 Nm |
| Torque RPM | 4000 RPM | 4400 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1535 kg | 1894 kg |
| Vehicle Length | 5000 mm | 6580 mm |
| Vehicle Width | 1850 mm | 2440 mm |
| Vehicle Height | 1400 mm | 1940 mm |
| Wheelbase Size | 3160 mm | 4250 mm |
| Fuel Tank Capacity | 66 L | 129 L |
