2005 Opel Signum vs. 2004 Porsche 911
To start off, 2005 Opel Signum is newer by 1 year(s). Which means there will be less support and parts availability for 2004 Porsche 911. In addition, the cost of maintenance, including insurance, on 2004 Porsche 911 would be higher. At 3,589 cc (6 cylinders), 2004 Porsche 911 is equipped with a bigger engine. In terms of performance, 2004 Porsche 911 (317 HP @ 6000 RPM) has 197 more horse power than 2005 Opel Signum. (120 HP @ 6000 RPM) In normal driving conditions, 2004 Porsche 911 should accelerate faster than 2005 Opel Signum.
Because 2004 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Opel Signum. In wet, icy, snow, or gravel driving conditions, 2004 Porsche 911 will offer significantly more control. 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, 2004 Porsche 911 (370 Nm) has 205 more torque (in Nm) than 2005 Opel Signum. (165 Nm). This means 2004 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Signum.
Compare all specifications:
| 2005 Opel Signum | 2004 Porsche 911 | |
| Make | Opel | Porsche |
| Model | Signum | 911 |
| Year Released | 2005 | 2004 |
| Body Type | Hatchback | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 1796 cc | 3589 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 120 HP | 317 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 165 Nm | 370 Nm |
| Engine Bore Size | 80.5 mm | 96 mm |
| Engine Stroke Size | 88.2 mm | 83 mm |
| Engine Compression Ratio | 10.5:1 | 11.3:1 |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1482 kg | 1482 kg |
| Vehicle Length | 4640 mm | 4440 mm |
| Vehicle Width | 1800 mm | 1780 mm |
| Vehicle Height | 1470 mm | 1310 mm |
| Wheelbase Size | 2840 mm | 2360 mm |
| Fuel Consumption Overall | 7.9 L/100km | 12.4 L/100km |
| Fuel Tank Capacity | 60 L | 64 L |
