2007 BMW 320 vs. 2001 Opel Signum
To start off, 2007 BMW 320 is newer by 6 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 2,169 cc (6 cylinders), 2007 BMW 320 is equipped with a bigger engine. In terms of performance, 2007 BMW 320 (168 HP @ 6100 RPM) has 24 more horse power than 2001 Opel Signum. (144 HP @ 4000 RPM). In normal driving conditions, 2007 BMW 320 should accelerate faster than 2001 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW 320 weights approximately 217 kg more than 2001 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 BMW 320 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 2007 BMW 320. 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, 2001 Opel Signum (220 Nm @ 2000 RPM) has 10 more torque (in Nm) than 2007 BMW 320. (210 Nm @ 3500 RPM). This means 2001 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 320.
Compare all specifications:
| 2007 BMW 320 | 2001 Opel Signum | |
| Make | BMW | Opel |
| Model | 320 | Signum |
| Year Released | 2007 | 2001 |
| Body Type | Convertible | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2169 cc | 1994 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 168 HP | 144 HP |
| Engine RPM | 6100 RPM | 4000 RPM |
| Torque | 210 Nm | 220 Nm |
| Torque RPM | 3500 RPM | 2000 RPM |
| Engine Bore Size | 80 mm | 82 mm |
| Engine Stroke Size | 72 mm | 90.4 mm |
| Engine Compression Ratio | 10.8:1 | 18.0:1 |
| Top Speed | 222 km/hour | 209 km/hour |
| Acceleration 0-100mph | 9.1 seconds | 10.5 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1615 kg | 1398 kg |
| Vehicle Length | 4490 mm | 4640 mm |
| Vehicle Width | 1760 mm | 1800 mm |
| Vehicle Height | 1380 mm | 1470 mm |
| Wheelbase Size | 2730 mm | 2850 mm |
| Fuel Tank Capacity | 63 L | 60 L |
