2001 Opel Signum vs. 2003 Opel Speedster
To start off, 2003 Opel Speedster 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 2,958 cc (6 cylinders), 2001 Opel Signum is equipped with a bigger engine. In terms of performance, 2003 Opel Speedster (197 HP @ 5500 RPM) has 22 more horse power than 2001 Opel Signum. (175 HP @ 4000 RPM) In normal driving conditions, 2003 Opel Speedster should accelerate faster than 2001 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2001 Opel Signum weights approximately 665 kg more than 2003 Opel Speedster.
Because 2003 Opel Speedster 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 Opel Speedster. 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 (370 Nm @ 1900 RPM) has 120 more torque (in Nm) than 2003 Opel Speedster. (250 Nm @ 1950 RPM). This means 2001 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Speedster.
Compare all specifications:
| 2001 Opel Signum | 2003 Opel Speedster | |
| Make | Opel | Opel |
| Model | Signum | Speedster |
| Year Released | 2001 | 2003 |
| Body Type | Hatchback | Convertible |
| Engine Position | Front | Middle |
| Engine Size | 2958 cc | 1993 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 175 HP | 197 HP |
| Engine RPM | 4000 RPM | 5500 RPM |
| Torque | 370 Nm | 250 Nm |
| Torque RPM | 1900 RPM | 1950 RPM |
| Engine Bore Size | 87.5 mm | 86 mm |
| Engine Stroke Size | 82 mm | 86 mm |
| Engine Compression Ratio | 18.5:1 | 8.8:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 221 km/hour | 243 km/hour |
| Acceleration 0-100mph | 9.4 seconds | 4.9 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1670 kg | 1005 kg |
| Vehicle Length | 4640 mm | 3790 mm |
| Vehicle Width | 1800 mm | 1710 mm |
| Vehicle Height | 1470 mm | 1120 mm |
| Wheelbase Size | 2710 mm | 2400 mm |
| Fuel Tank Capacity | 60 L | 36 L |
