2003 Opel Signum vs. 2006 Porsche 911
To start off, 2006 Porsche 911 is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Opel Signum. In addition, the cost of maintenance, including insurance, on 2003 Opel Signum would be higher. At 3,600 cc (6 cylinders), 2006 Porsche 911 is equipped with a bigger engine. In terms of performance, 2006 Porsche 911 (376 HP @ 7400 RPM) has 232 more horse power than 2003 Opel Signum. (144 HP @ 6000 RPM) In normal driving conditions, 2006 Porsche 911 should accelerate faster than 2003 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Signum weights approximately 291 kg more than 2006 Porsche 911.
Because 2006 Porsche 911 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 2006 Porsche 911. However, in wet, icy, snow, or gravel driving conditions, 2003 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, 2006 Porsche 911 (385 Nm @ 5000 RPM) has 145 more torque (in Nm) than 2003 Opel Signum. (240 Nm @ 3800 RPM). This means 2006 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Signum.
Compare all specifications:
| 2003 Opel Signum | 2006 Porsche 911 | |
| Make | Opel | Porsche |
| Model | Signum | 911 |
| Year Released | 2003 | 2006 |
| Body Type | Hatchback | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 2198 cc | 3600 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 144 HP | 376 HP |
| Engine RPM | 6000 RPM | 7400 RPM |
| Torque | 240 Nm | 385 Nm |
| Torque RPM | 3800 RPM | 5000 RPM |
| Engine Bore Size | 86 mm | 100 mm |
| Engine Stroke Size | 94.6 mm | 76.4 mm |
| Engine Compression Ratio | 12.0:1 | 11.7:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1686 kg | 1395 kg |
| Vehicle Length | 4640 mm | 4450 mm |
| Vehicle Width | 1800 mm | 1810 mm |
| Vehicle Height | 1470 mm | 1290 mm |
| Wheelbase Size | 2640 mm | 2360 mm |
| Fuel Consumption Overall | 5.2 L/100km | 12.9 L/100km |
| Fuel Tank Capacity | 58 L | 89 L |
