2008 Audi RS6 vs. 2006 BMW 730
To start off, 2008 Audi RS6 is newer by 2 year(s). Which means there will be less support and parts availability for 2006 BMW 730. In addition, the cost of maintenance, including insurance, on 2006 BMW 730 would be higher. At 4,175 cc (8 cylinders), 2008 Audi RS6 is equipped with a bigger engine. In terms of performance, 2008 Audi RS6 (580 HP @ 6250 RPM) has 326 more horse power than 2006 BMW 730. (254 HP @ 6600 RPM). In normal driving conditions, 2008 Audi RS6 should accelerate faster than 2006 BMW 730.
Because 2008 Audi RS6 is four wheel drive (4WD), it will have significant more traction and grip than 2006 BMW 730. 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 (881 Nm @ 6250 RPM) has 581 more torque (in Nm) than 2006 BMW 730. (300 Nm @ 2500 RPM). This means 2008 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW 730.
Compare all specifications:
| 2008 Audi RS6 | 2006 BMW 730 | |
| Make | Audi | BMW |
| Model | RS6 | 730 |
| Year Released | 2008 | 2006 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4175 cc | 2994 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 580 HP | 254 HP |
| Engine RPM | 6250 RPM | 6600 RPM |
| Torque | 881 Nm | 300 Nm |
| Torque RPM | 6250 RPM | 2500 RPM |
| Engine Compression Ratio | 10.5:1 | 10.7:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 244 km/hour | 244 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Width | 1820 mm | 1910 mm |
