2005 Pontiac GTO vs. 2006 Porsche Cayman
To start off, 2006 Porsche Cayman 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 105 more horse power than 2006 Porsche Cayman. (295 HP @ 6250 RPM). In normal driving conditions, 2005 Pontiac GTO should accelerate faster than 2006 Porsche Cayman. With that said, vehicle weight also plays an important factor in acceleration. 2005 Pontiac GTO weights approximately 275 kg more than 2006 Porsche Cayman. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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 196 more torque (in Nm) than 2006 Porsche Cayman. (340 Nm). This means 2005 Pontiac GTO will have an easier job in driving up hills or pulling heavy equipment than 2006 Porsche Cayman.
Compare all specifications:
| 2005 Pontiac GTO | 2006 Porsche Cayman | |
| Make | Pontiac | Porsche |
| Model | GTO | Cayman |
| Year Released | 2005 | 2006 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Middle |
| Engine Size | 5965 cc | 3392 cc |
| Engine Type | V | boxer |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 400 HP | 295 HP |
| Engine RPM | 5200 RPM | 6250 RPM |
| Torque | 536 Nm | 340 Nm |
| Engine Compression Ratio | 10.9:1 | 11.1:1 |
| Drive Type | Rear | Rear |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1690 kg | 1415 kg |
| Vehicle Length | 4830 mm | 4380 mm |
| Vehicle Width | 1850 mm | 1810 mm |
| Vehicle Height | 1400 mm | 1310 mm |
| Wheelbase Size | 2800 mm | 2420 mm |
| Fuel Tank Capacity | 68 L | 74 L |
