2004 Opel Signum vs. 2005 Porsche 911
To start off, 2005 Porsche 911 is newer by 1 year(s). Which means there will be less support and parts availability for 2004 Opel Signum. In addition, the cost of maintenance, including insurance, on 2004 Opel Signum would be higher. At 3,600 cc (6 cylinders), 2005 Porsche 911 is equipped with a bigger engine. In terms of performance, 2005 Porsche 911 (377 HP @ 7400 RPM) has 252 more horse power than 2004 Opel Signum. (125 HP @ 5600 RPM) In normal driving conditions, 2005 Porsche 911 should accelerate faster than 2004 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2005 Porsche 911 weights approximately 75 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 2005 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 2005 Porsche 911. 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, 2005 Porsche 911 (385 Nm @ 5000 RPM) has 215 more torque (in Nm) than 2004 Opel Signum. (170 Nm @ 3800 RPM). This means 2005 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2004 Opel Signum.
Compare all specifications:
| 2004 Opel Signum | 2005 Porsche 911 | |
| Make | Opel | Porsche |
| Model | Signum | 911 |
| Year Released | 2004 | 2005 |
| Body Type | Hatchback | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 1796 cc | 3600 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 125 HP | 377 HP |
| Engine RPM | 5600 RPM | 7400 RPM |
| Torque | 170 Nm | 385 Nm |
| Torque RPM | 3800 RPM | 5000 RPM |
| Engine Bore Size | 80.5 mm | 100 mm |
| Engine Stroke Size | 88.2 mm | 76.4 mm |
| Engine Compression Ratio | 10.5:1 | 11.7:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 197 km/hour | 306 km/hour |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1380 kg | 1455 kg |
| Vehicle Length | 4640 mm | 4440 mm |
| Vehicle Width | 1800 mm | 1780 mm |
| Vehicle Height | 1470 mm | 1280 mm |
| Wheelbase Size | 2700 mm | 2360 mm |
| Fuel Consumption Overall | 7.5 L/100km | 13 L/100km |
| Fuel Tank Capacity | 58 L | 89 L |
