2004 BMW 320 vs. 2001 Opel Signum
To start off, 2004 BMW 320 is newer by 3 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 2,171 cc (4 cylinders), 2001 Opel Signum is equipped with a bigger engine. In terms of performance, 2004 BMW 320 (148 HP @ 4000 RPM) has 23 more horse power than 2001 Opel Signum. (125 HP @ 3250 RPM). In normal driving conditions, 2004 BMW 320 should accelerate faster than 2001 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW 320 weights approximately 70 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 2004 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 2004 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, 2004 BMW 320 (350 Nm @ 2000 RPM) has 70 more torque (in Nm) than 2001 Opel Signum. (280 Nm @ 1500 RPM). This means 2004 BMW 320 will have an easier job in driving up hills or pulling heavy equipment than 2001 Opel Signum.
Compare all specifications:
| 2004 BMW 320 | 2001 Opel Signum | |
| Make | BMW | Opel |
| Model | 320 | Signum |
| Year Released | 2004 | 2001 |
| Body Type | Convertible | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1993 cc | 2171 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 148 HP | 125 HP |
| Engine RPM | 4000 RPM | 3250 RPM |
| Torque | 350 Nm | 280 Nm |
| Torque RPM | 2000 RPM | 1500 RPM |
| Engine Compression Ratio | 17.0:1 | 18.5:1 |
| Fuel Type | Diesel | Diesel |
| Top Speed | 211 km/hour | 201 km/hour |
| Acceleration 0-100mph | 9.7 seconds | 11.2 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 | 1680 kg | 1610 kg |
| Vehicle Length | 4490 mm | 4640 mm |
| Vehicle Width | 1760 mm | 1800 mm |
| Vehicle Height | 1380 mm | 1470 mm |
| Wheelbase Size | 2730 mm | 2840 mm |
| Fuel Tank Capacity | 63 L | 60 L |
