2003 BMW M3 vs. 1999 Opel Signum
To start off, 2003 BMW M3 is newer by 4 year(s). Which means there will be less support and parts availability for 1999 Opel Signum. In addition, the cost of maintenance, including insurance, on 1999 Opel Signum would be higher. At 2,993 cc (6 cylinders), 2003 BMW M3 is equipped with a bigger engine. In terms of performance, 2003 BMW M3 (240 HP @ 6000 RPM) has 141 more horse power than 1999 Opel Signum. (99 HP @ 3120 RPM). In normal driving conditions, 2003 BMW M3 should accelerate faster than 1999 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 1999 Opel Signum weights approximately 153 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, 1999 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 (300 Nm @ 4250 RPM) has 60 more torque (in Nm) than 1999 Opel Signum. (240 Nm @ 1500 RPM). This means 2003 BMW M3 will have an easier job in driving up hills or pulling heavy equipment than 1999 Opel Signum.
Compare all specifications:
| 2003 BMW M3 | 1999 Opel Signum | |
| Make | BMW | Opel |
| Model | M3 | Signum |
| Year Released | 2003 | 1999 |
| Body Type | Coupe | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 1995 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 240 HP | 99 HP |
| Engine RPM | 6000 RPM | 3120 RPM |
| Torque | 300 Nm | 240 Nm |
| Torque RPM | 4250 RPM | 1500 RPM |
| Engine Bore Size | 86 mm | 84 mm |
| Engine Stroke Size | 85.8 mm | 90 mm |
| Engine Compression Ratio | 10.5:1 | 18.5:1 |
| Top Speed | 220 km/hour | 185 km/hour |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1442 kg | 1595 kg |
| Vehicle Length | 4440 mm | 4640 mm |
| Vehicle Width | 1720 mm | 1800 mm |
| Vehicle Height | 1340 mm | 1470 mm |
| Wheelbase Size | 2730 mm | 2840 mm |
| Fuel Tank Capacity | 65 L | 60 L |
