2006 BMW 323 vs. 2003 Opel Signum
To start off, 2006 BMW 323 is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Opel Signum. In addition, the cost of maintenance, including insurance, on 2003 Opel Signum would be higher. At 2,958 cc (6 cylinders), 2003 Opel Signum is equipped with a bigger engine. In terms of performance, both vehicles can yield 175 horse power. So under normal driving conditions, the acceleration of both vehicles should be relatively similar.
Because 2006 BMW 323 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 2006 BMW 323. However, in wet, icy, snow, or gravel driving conditions, 2003 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 Opel Signum (370 Nm) has 140 more torque (in Nm) than 2006 BMW 323. (230 Nm). This means 2003 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW 323.
Compare all specifications:
| 2006 BMW 323 | 2003 Opel Signum | |
| Make | BMW | Opel |
| Model | 323 | Signum |
| Year Released | 2006 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 2958 cc |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 175 HP | 175 HP |
| Engine RPM | 5800 RPM | 4000 RPM |
| Torque | 230 Nm | 370 Nm |
| Engine Bore Size | 78.8 mm | 87.5 mm |
| Engine Stroke Size | 82 mm | 82 mm |
| Engine Compression Ratio | 11.0:1 | 18.5:1 |
| Top Speed | 229 km/hour | 221 km/hour |
| Acceleration 0-100mph | 7.9 seconds | 9.4 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Width | 1850 mm | 1800 mm |
| Fuel Consumption Overall | 8.6 L/100km | 7.4 L/100km |
| Fuel Tank Capacity | 63 L | 60 L |
