1999 Opel Signum vs. 2005 Rover 75
To start off, 2005 Rover 75 is newer by 6 year(s). Which means there will be less support and parts availability for 1999 Opel Signum. In addition, the cost of maintenance, including insurance, on 1999 Opel Signum would be higher. At 2,495 cc (6 cylinders), 2005 Rover 75 is equipped with a bigger engine. In terms of performance, 2005 Rover 75 (175 HP @ 4000 RPM) has 27 more horse power than 1999 Opel Signum. (148 HP @ 4000 RPM) In normal driving conditions, 2005 Rover 75 should accelerate faster than 1999 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2005 Rover 75 weights approximately 439 kg more than 1999 Opel Signum. 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, 1999 Opel Signum (270 Nm @ 2000 RPM) has 30 more torque (in Nm) than 2005 Rover 75. (240 Nm @ 4000 RPM). This means 1999 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2005 Rover 75.
Compare all specifications:
| 1999 Opel Signum | 2005 Rover 75 | |
| Make | Opel | Rover |
| Model | Signum | 75 |
| Year Released | 1999 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 1998 cc | 2495 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 148 HP | 175 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Torque | 270 Nm | 240 Nm |
| Torque RPM | 2000 RPM | 4000 RPM |
| Engine Bore Size | 82 mm | 80 mm |
| Engine Stroke Size | 90.4 mm | 82.8 mm |
| Engine Compression Ratio | 18.0:1 | 10.5:1 |
| Acceleration 0-100mph | 10.5 seconds | 8.8 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 | 1086 kg | 1525 kg |
| Vehicle Length | 4640 mm | 4800 mm |
| Vehicle Width | 1800 mm | 1780 mm |
| Vehicle Height | 1470 mm | 1430 mm |
| Wheelbase Size | 2580 mm | 2750 mm |
| Fuel Tank Capacity | 60 L | 65 L |
