2003 BMW M3 vs. 2001 Opel Signum
To start off, 2003 BMW M3 is newer by 2 year(s). Which means there will be less support and parts availability for 2001 Opel Signum. In addition, the cost of maintenance, including insurance, on 2001 Opel Signum would be higher. At 3,168 cc (6 cylinders), 2003 BMW M3 is equipped with a bigger engine. In terms of performance, 2003 BMW M3 (342 HP @ 7900 RPM) has 198 more horse power than 2001 Opel Signum. (144 HP @ 4000 RPM). In normal driving conditions, 2003 BMW M3 should accelerate faster than 2001 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2001 Opel Signum weights approximately 13 kg more than 2003 BMW M3.
Because 2003 BMW M3 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 2003 BMW M3. However, in wet, icy, snow, or gravel driving conditions, 2001 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, 2003 BMW M3 (350 Nm @ 4900 RPM) has 130 more torque (in Nm) than 2001 Opel Signum. (220 Nm @ 2000 RPM). This means 2003 BMW M3 will have an easier job in driving up hills or pulling heavy equipment than 2001 Opel Signum.
Compare all specifications:
| 2003 BMW M3 | 2001 Opel Signum | |
| Make | BMW | Opel |
| Model | M3 | Signum |
| Year Released | 2003 | 2001 |
| Body Type | Coupe | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3168 cc | 1994 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 342 HP | 144 HP |
| Engine RPM | 7900 RPM | 4000 RPM |
| Torque | 350 Nm | 220 Nm |
| Torque RPM | 4900 RPM | 2000 RPM |
| Engine Bore Size | 87 mm | 82 mm |
| Engine Stroke Size | 91 mm | 90.4 mm |
| Engine Compression Ratio | 11.5:1 | 18.0:1 |
| Top Speed | 259 km/hour | 209 km/hour |
| Acceleration 0-100mph | 4.9 seconds | 10.5 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1385 kg | 1398 kg |
| Vehicle Length | 4500 mm | 4640 mm |
| Vehicle Width | 1790 mm | 1800 mm |
| Vehicle Height | 1370 mm | 1470 mm |
| Wheelbase Size | 2730 mm | 2850 mm |
| Fuel Tank Capacity | 63 L | 60 L |
