2008 Opel Signum vs. 2006 Rover 75
To start off, 2008 Opel Signum is newer by 2 year(s). Which means there will be less support and parts availability for 2006 Rover 75. In addition, the cost of maintenance, including insurance, on 2006 Rover 75 would be higher. At 1,998 cc (4 cylinders), 2008 Opel Signum is equipped with a bigger engine. In terms of performance, 2008 Opel Signum (173 HP @ 5500 RPM) has 44 more horse power than 2006 Rover 75. (129 HP @ 4000 RPM). In normal driving conditions, 2008 Opel Signum should accelerate faster than 2006 Rover 75. With that said, vehicle weight also plays an important factor in acceleration. 2006 Rover 75 weights approximately 25 kg more than 2008 Opel Signum.
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 Rover 75 (300 Nm @ 1900 RPM) has 35 more torque (in Nm) than 2008 Opel Signum. (265 Nm @ 2500 RPM). This means 2006 Rover 75 will have an easier job in driving up hills or pulling heavy equipment than 2008 Opel Signum.
Compare all specifications:
| 2008 Opel Signum | 2006 Rover 75 | |
| Make | Opel | Rover |
| Model | Signum | 75 |
| Year Released | 2008 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 1998 cc | 1951 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 173 HP | 129 HP |
| Engine RPM | 5500 RPM | 4000 RPM |
| Torque | 265 Nm | 300 Nm |
| Torque RPM | 2500 RPM | 1900 RPM |
| Engine Bore Size | 86 mm | 84 mm |
| Engine Stroke Size | 86 mm | 88 mm |
| Engine Compression Ratio | 9.5:1 | 18.0:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 220 km/hour | 193 km/hour |
| Acceleration 0-100mph | 9.4 seconds | 11 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 | 1585 kg |
| Vehicle Length | 4640 mm | 4750 mm |
| Vehicle Width | 1800 mm | 1780 mm |
| Vehicle Height | 1470 mm | 1430 mm |
| Wheelbase Size | 2840 mm | 2750 mm |
| Fuel Consumption Overall | 9.2 L/100km | 6 L/100km |
| Fuel Tank Capacity | 60 L | 65 L |
