2004 Opel Omega vs. 2005 Rover 75
To start off, 2005 Rover 75 is newer by 1 year(s). Which means there will be less support and parts availability for 2004 Opel Omega. In addition, the cost of maintenance, including insurance, on 2004 Opel Omega would be higher. At 2,496 cc (6 cylinders), 2005 Rover 75 is equipped with a bigger engine. In terms of performance, 2005 Rover 75 (175 HP @ 6250 RPM) has 33 more horse power than 2004 Opel Omega. (142 HP @ 5400 RPM) In normal driving conditions, 2005 Rover 75 should accelerate faster than 2004 Opel Omega. With that said, vehicle weight also plays an important factor in acceleration. 2004 Opel Omega weights approximately 198 kg more than 2005 Rover 75.
Because 2004 Opel Omega 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 2004 Opel Omega. However, in wet, icy, snow, or gravel driving conditions, 2005 Rover 75, 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, 2005 Rover 75 (240 Nm @ 4000 RPM) has 31 more torque (in Nm) than 2004 Opel Omega. (209 Nm @ 4000 RPM). This means 2005 Rover 75 will have an easier job in driving up hills or pulling heavy equipment than 2004 Opel Omega.
Compare all specifications:
| 2004 Opel Omega | 2005 Rover 75 | |
| Make | Opel | Rover |
| Model | Omega | 75 |
| Year Released | 2004 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 2198 cc | 2496 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 142 HP | 175 HP |
| Engine RPM | 5400 RPM | 6250 RPM |
| Torque | 209 Nm | 240 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Bore Size | 86 mm | 80 mm |
| Engine Stroke Size | 94.6 mm | 82.8 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 210 km/hour | 220 km/hour |
| Acceleration 0-100mph | 10.8 seconds | 8.8 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1733 kg | 1535 kg |
| Vehicle Length | 4830 mm | 4750 mm |
| Vehicle Width | 1780 mm | 1780 mm |
| Vehicle Height | 1460 mm | 1430 mm |
| Wheelbase Size | 2840 mm | 2750 mm |
| Fuel Consumption Overall | 7.8 L/100km | 9.4 L/100km |
| Fuel Tank Capacity | 75 L | 65 L |
