2008 Audi RS6 vs. 2005 Opel Omega
To start off, 2008 Audi RS6 is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Opel Omega. In addition, the cost of maintenance, including insurance, on 2005 Opel Omega would be higher. At 4,172 cc (8 cylinders), 2008 Audi RS6 is equipped with a bigger engine. In terms of performance, 2008 Audi RS6 (444 HP @ 5700 RPM) has 298 more horse power than 2005 Opel Omega. (146 HP @ 4000 RPM). In normal driving conditions, 2008 Audi RS6 should accelerate faster than 2005 Opel Omega. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi RS6 weights approximately 350 kg more than 2005 Opel Omega. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Audi RS6 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Opel Omega. In wet, icy, snow, or gravel driving conditions, 2008 Audi RS6 will offer significantly more control. 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, 2008 Audi RS6 (560 Nm @ 1950 RPM) has 357 more torque (in Nm) than 2005 Opel Omega. (203 Nm @ 4000 RPM). This means 2008 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Omega.
Compare all specifications:
| 2008 Audi RS6 | 2005 Opel Omega | |
| Make | Audi | Opel |
| Model | RS6 | Omega |
| Year Released | 2008 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 2198 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 444 HP | 146 HP |
| Engine RPM | 5700 RPM | 4000 RPM |
| Torque | 560 Nm | 203 Nm |
| Torque RPM | 1950 RPM | 4000 RPM |
| Engine Bore Size | 84.5 mm | 86 mm |
| Engine Stroke Size | 93 mm | 94.6 mm |
| Engine Compression Ratio | 9.0:1 | 10.5:1 |
| Top Speed | 250 km/hour | 210 km/hour |
| Acceleration 0-100mph | 4.7 seconds | 10.5 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1955 kg | 1605 kg |
| Vehicle Length | 4840 mm | 4900 mm |
| Vehicle Width | 1860 mm | 1780 mm |
| Vehicle Height | 1400 mm | 1460 mm |
| Wheelbase Size | 2770 mm | 2840 mm |
| Fuel Consumption Overall | 14.8 L/100km | 9.6 L/100km |
| Fuel Tank Capacity | 82 L | 75 L |
