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 3,818 cc (6 cylinders), 2005 Porsche 911 is equipped with a bigger engine. In terms of performance, 2005 Porsche 911 (355 HP @ 6800 RPM) has 182 more horse power than 2004 Opel Signum. (173 HP @ 5500 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. 2004 Opel Signum weights approximately 60 kg more than 2005 Porsche 911.
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 @ 4600 RPM) has 120 more torque (in Nm) than 2004 Opel Signum. (265 Nm @ 2500 RPM). This means 2005 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2004 Opel Signum. 2005 Porsche 911 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. 2005 Porsche 911 will be easier to drive especially in heavy traffic.
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 | 1995 cc | 3818 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 173 HP | 355 HP |
| Engine RPM | 5500 RPM | 6800 RPM |
| Torque | 265 Nm | 385 Nm |
| Torque RPM | 2500 RPM | 4600 RPM |
| Engine Bore Size | 86 mm | 99 mm |
| Engine Stroke Size | 86 mm | 83 mm |
| Engine Compression Ratio | 9.5:1 | 11.8:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 220 km/hour | 293 km/hour |
| 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 | 1500 kg |
| Vehicle Length | 4640 mm | 4430 mm |
| Vehicle Width | 1800 mm | 1810 mm |
| Vehicle Height | 1470 mm | 1310 mm |
| Wheelbase Size | 2840 mm | 2360 mm |
| Fuel Consumption Overall | 9.4 L/100km | 11.6 L/100km |
| Fuel Tank Capacity | 60 L | 64 L |
