2006 Opel Signum vs. 2005 Rover 25
To start off, 2006 Opel Signum is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Rover 25. In addition, the cost of maintenance, including insurance, on 2005 Rover 25 would be higher. At 1,910 cc (4 cylinders), 2006 Opel Signum is equipped with a bigger engine. In terms of performance, 2006 Opel Signum (118 HP @ 4000 RPM) has 16 more horse power than 2005 Rover 25. (102 HP @ 6000 RPM). In normal driving conditions, 2006 Opel Signum should accelerate faster than 2005 Rover 25. With that said, vehicle weight also plays an important factor in acceleration. 2006 Opel Signum weights approximately 505 kg more than 2005 Rover 25. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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, 2006 Opel Signum (281 Nm @ 2000 RPM) has 158 more torque (in Nm) than 2005 Rover 25. (123 Nm @ 4500 RPM). This means 2006 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2005 Rover 25.
Compare all specifications:
| 2006 Opel Signum | 2005 Rover 25 | |
| Make | Opel | Rover |
| Model | Signum | 25 |
| Year Released | 2006 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 1910 cc | 1396 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 118 HP | 102 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 281 Nm | 123 Nm |
| Torque RPM | 2000 RPM | 4500 RPM |
| Engine Bore Size | 82 mm | 75 mm |
| Engine Stroke Size | 90.4 mm | 79 mm |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 191 km/hour | 185 km/hour |
| Acceleration 0-100mph | 12.2 seconds | 10.2 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 3 doors |
| Vehicle Weight | 1615 kg | 1110 kg |
| Vehicle Length | 4640 mm | 4000 mm |
| Vehicle Width | 1800 mm | 1690 mm |
| Vehicle Height | 1470 mm | 1420 mm |
| Wheelbase Size | 2840 mm | 2510 mm |
| Fuel Consumption Overall | 6 L/100km | 6.6 L/100km |
| Fuel Tank Capacity | 60 L | 50 L |
