2005 BMW 520 vs. 2004 Opel Signum
To start off, 2005 BMW 520 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 2,171 cc (6 cylinders), 2005 BMW 520 is equipped with a bigger engine. In terms of performance, 2004 Opel Signum (173 HP @ 5500 RPM) has 3 more horse power than 2005 BMW 520. (170 HP @ 6000 RPM) In normal driving conditions, 2004 Opel Signum should accelerate faster than 2005 BMW 520. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 520 weights approximately 110 kg more than 2004 Opel Signum.
Because 2005 BMW 520 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 BMW 520. 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, 2004 Opel Signum (265 Nm @ 2500 RPM) has 55 more torque (in Nm) than 2005 BMW 520. (210 Nm @ 3500 RPM). This means 2004 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW 520.
Compare all specifications:
| 2005 BMW 520 | 2004 Opel Signum | |
| Make | BMW | Opel |
| Model | 520 | Signum |
| Year Released | 2005 | 2004 |
| Body Type | Station Wagon | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2171 cc | 1995 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 170 HP | 173 HP |
| Engine RPM | 6000 RPM | 5500 RPM |
| Torque | 210 Nm | 265 Nm |
| Torque RPM | 3500 RPM | 2500 RPM |
| Engine Compression Ratio | 10.0:1 | 9.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1670 kg | 1560 kg |
| Vehicle Length | 4810 mm | 4640 mm |
| Vehicle Width | 1810 mm | 1800 mm |
| Vehicle Height | 1450 mm | 1470 mm |
| Wheelbase Size | 2840 mm | 2840 mm |
| Fuel Tank Capacity | 70 L | 60 L |
