2005 Pontiac GTO vs. 2006 Pontiac Grand Prix
To start off, 2006 Pontiac Grand Prix is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Pontiac GTO. In addition, the cost of maintenance, including insurance, on 2005 Pontiac GTO would be higher. At 5,965 cc (8 cylinders), 2005 Pontiac GTO is equipped with a bigger engine. In terms of performance, 2005 Pontiac GTO (400 HP @ 5200 RPM) has 140 more horse power than 2006 Pontiac Grand Prix. (260 HP @ 5200 RPM). In normal driving conditions, 2005 Pontiac GTO should accelerate faster than 2006 Pontiac Grand Prix. With that said, vehicle weight also plays an important factor in acceleration. 2005 Pontiac GTO weights approximately 343 kg more than 2006 Pontiac Grand Prix. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Pontiac GTO 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 2005 Pontiac GTO. However, in wet, icy, snow, or gravel driving conditions, 2006 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, 2005 Pontiac GTO (536 Nm) has 156 more torque (in Nm) than 2006 Pontiac Grand Prix. (380 Nm). This means 2005 Pontiac GTO will have an easier job in driving up hills or pulling heavy equipment than 2006 Pontiac Grand Prix.
Compare all specifications:
| 2005 Pontiac GTO | 2006 Pontiac Grand Prix | |
| Make | Pontiac | Pontiac |
| Model | GTO | Grand Prix |
| Year Released | 2005 | 2006 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5965 cc | 3786 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 400 HP | 260 HP |
| Engine RPM | 5200 RPM | 5200 RPM |
| Torque | 536 Nm | 380 Nm |
| Engine Compression Ratio | 10.9:1 | 8.5:1 |
| Drive Type | Rear | Front |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1690 kg | 1347 kg |
| Vehicle Length | 4830 mm | 5040 mm |
| Vehicle Width | 1850 mm | 1830 mm |
| Vehicle Height | 1400 mm | 1430 mm |
| Wheelbase Size | 2800 mm | 2810 mm |
| Fuel Tank Capacity | 68 L | 64 L |
