2003 Pontiac GTO vs. 2009 Porsche Cayman
To start off, 2009 Porsche Cayman is newer by 6 year(s). Which means there will be less support and parts availability for 2003 Pontiac GTO. In addition, the cost of maintenance, including insurance, on 2003 Pontiac GTO would be higher. At 5,664 cc (8 cylinders), 2003 Pontiac GTO is equipped with a bigger engine. In terms of performance, 2003 Pontiac GTO (350 HP @ 5200 RPM) has 108 more horse power than 2009 Porsche Cayman. (242 HP @ 6500 RPM). In normal driving conditions, 2003 Pontiac GTO should accelerate faster than 2009 Porsche Cayman. With that said, vehicle weight also plays an important factor in acceleration. 2003 Pontiac GTO weights approximately 160 kg more than 2009 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, 2003 Pontiac GTO (495 Nm @ 4000 RPM) has 222 more torque (in Nm) than 2009 Porsche Cayman. (273 Nm @ 4600 RPM). This means 2003 Pontiac GTO will have an easier job in driving up hills or pulling heavy equipment than 2009 Porsche Cayman.
Compare all specifications:
| 2003 Pontiac GTO | 2009 Porsche Cayman | |
| Make | Pontiac | Porsche |
| Model | GTO | Cayman |
| Year Released | 2003 | 2009 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Middle |
| Engine Size | 5664 cc | 2687 cc |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 350 HP | 242 HP |
| Engine RPM | 5200 RPM | 6500 RPM |
| Torque | 495 Nm | 273 Nm |
| Torque RPM | 4000 RPM | 4600 RPM |
| Engine Bore Size | 99 mm | 85.5 mm |
| Engine Stroke Size | 92 mm | 78 mm |
| Engine Compression Ratio | 10.1:1 | 11.3:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1690 kg | 1530 kg |
| Vehicle Length | 4830 mm | 4350 mm |
| Vehicle Width | 1850 mm | 1310 mm |
| Vehicle Height | 1400 mm | 1810 mm |
| Wheelbase Size | 2750 mm | 2420 mm |
| Fuel Tank Capacity | 70 L | 64 L |
