2006 Opel Signum vs. 2008 Rover 45
To start off, 2008 Rover 45 is newer by 2 year(s). Which means there will be less support and parts availability for 2006 Opel Signum. In addition, the cost of maintenance, including insurance, on 2006 Opel Signum would be higher. At 1,998 cc (4 cylinders), 2006 Opel Signum is equipped with a bigger engine. In terms of performance, 2006 Opel Signum (173 HP @ 5500 RPM) has 58 more horse power than 2008 Rover 45. (115 HP @ 5500 RPM). In normal driving conditions, 2006 Opel Signum should accelerate faster than 2008 Rover 45. With that said, vehicle weight also plays an important factor in acceleration. 2006 Opel Signum weights approximately 324 kg more than 2008 Rover 45. 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 (266 Nm @ 2500 RPM) has 106 more torque (in Nm) than 2008 Rover 45. (160 Nm @ 2750 RPM). This means 2006 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2008 Rover 45.
Compare all specifications:
| 2006 Opel Signum | 2008 Rover 45 | |
| Make | Opel | Rover |
| Model | Signum | 45 |
| Year Released | 2006 | 2008 |
| Engine Position | Front | Front |
| Engine Size | 1998 cc | 1796 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 173 HP | 115 HP |
| Engine RPM | 5500 RPM | 5500 RPM |
| Torque | 266 Nm | 160 Nm |
| Torque RPM | 2500 RPM | 2750 RPM |
| Engine Bore Size | 86 mm | 80 mm |
| Engine Stroke Size | 86 mm | 89.3 mm |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 220 km/hour | 193 km/hour |
| Acceleration 0-100mph | 9.4 seconds | 9.3 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1560 kg | 1236 kg |
| Vehicle Length | 4640 mm | 4520 mm |
| Vehicle Width | 1800 mm | 1700 mm |
| Vehicle Height | 1470 mm | 1400 mm |
| Wheelbase Size | 2840 mm | 2630 mm |
| Fuel Consumption Overall | 9.2 L/100km | 7.1 L/100km |
| Fuel Tank Capacity | 60 L | 55 L |
