2008 Audi RS6 vs. 2009 BMW 750
To start off, 2009 BMW 750 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Audi RS6. In addition, the cost of maintenance, including insurance, on 2008 Audi RS6 would be higher. At 4,799 cc (8 cylinders), 2009 BMW 750 is equipped with a bigger engine. In terms of performance, 2008 Audi RS6 (444 HP @ 5700 RPM) has 81 more horse power than 2009 BMW 750. (363 HP @ 6300 RPM). In normal driving conditions, 2008 Audi RS6 should accelerate faster than 2009 BMW 750. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi RS6 weights approximately 5 kg more than 2009 BMW 750. 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 2009 BMW 750. 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 70 more torque (in Nm) than 2009 BMW 750. (490 Nm @ 3400 RPM). This means 2008 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 750.
Compare all specifications:
| 2008 Audi RS6 | 2009 BMW 750 | |
| Make | Audi | BMW |
| Model | RS6 | 750 |
| Year Released | 2008 | 2009 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 4799 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 444 HP | 363 HP |
| Engine RPM | 5700 RPM | 6300 RPM |
| Torque | 560 Nm | 490 Nm |
| Torque RPM | 1950 RPM | 3400 RPM |
| Engine Bore Size | 84.5 mm | 93 mm |
| Engine Stroke Size | 93 mm | 88.3 mm |
| Engine Compression Ratio | 9.0:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 4.7 seconds | 5.9 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 | 1950 kg |
| Vehicle Length | 4840 mm | 5190 mm |
| Vehicle Width | 1860 mm | 1910 mm |
| Vehicle Height | 1400 mm | 1490 mm |
| Wheelbase Size | 2770 mm | 3130 mm |
| Fuel Consumption Overall | 14.8 L/100km | 11.4 L/100km |
| Fuel Tank Capacity | 82 L | 90 L |
