2004 Opel Signum vs. 2003 Pontiac GTO
To start off, 2004 Opel Signum is newer by 1 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 5,665 cc (8 cylinders), 2003 Pontiac GTO is equipped with a bigger engine. In terms of performance, 2003 Pontiac GTO (350 HP @ 5200 RPM) has 177 more horse power than 2004 Opel Signum. (173 HP @ 5500 RPM) In normal driving conditions, 2003 Pontiac GTO should accelerate faster than 2004 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2003 Pontiac GTO weights approximately 130 kg more than 2004 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 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 2003 Pontiac GTO. However, in wet, icy, snow, or gravel driving conditions, 2004 Opel Signum, 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, 2003 Pontiac GTO (495 Nm @ 4000 RPM) has 230 more torque (in Nm) than 2004 Opel Signum. (265 Nm @ 2500 RPM). This means 2003 Pontiac GTO will have an easier job in driving up hills or pulling heavy equipment than 2004 Opel Signum. 2003 Pontiac GTO has automatic transmission and 2004 Opel Signum has manual transmission. 2004 Opel Signum will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Pontiac GTO will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2004 Opel Signum | 2003 Pontiac GTO | |
| Make | Opel | Pontiac |
| Model | Signum | GTO |
| Year Released | 2004 | 2003 |
| Body Type | Hatchback | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1995 cc | 5665 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 173 HP | 350 HP |
| Engine RPM | 5500 RPM | 5200 RPM |
| Torque | 265 Nm | 495 Nm |
| Torque RPM | 2500 RPM | 4000 RPM |
| Engine Bore Size | 86 mm | 99 mm |
| Engine Stroke Size | 86 mm | 92 mm |
| Engine Compression Ratio | 9.5:1 | 10.1:1 |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1560 kg | 1690 kg |
| Vehicle Length | 4640 mm | 4830 mm |
| Vehicle Width | 1800 mm | 1850 mm |
| Vehicle Height | 1470 mm | 1400 mm |
| Wheelbase Size | 2840 mm | 2860 mm |
| Fuel Tank Capacity | 60 L | 70 L |
