2009 Audi RS6 vs. 2007 Audi A8
To start off, 2009 Audi RS6 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Audi A8. In addition, the cost of maintenance, including insurance, on 2007 Audi A8 would be higher. At 5,202 cc (10 cylinders), 2007 Audi A8 is equipped with a bigger engine. In terms of performance, 2009 Audi RS6 (572 HP @ 6250 RPM) has 128 more horse power than 2007 Audi A8. (444 HP @ 7000 RPM). In normal driving conditions, 2009 Audi RS6 should accelerate faster than 2007 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi RS6 weights approximately 88 kg more than 2007 Audi A8. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or 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, 2009 Audi RS6 (650 Nm @ 1500 RPM) has 110 more torque (in Nm) than 2007 Audi A8. (540 Nm @ 3500 RPM). This means 2009 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A8.
Compare all specifications:
| 2009 Audi RS6 | 2007 Audi A8 | |
| Make | Audi | Audi |
| Model | RS6 | A8 |
| Year Released | 2009 | 2007 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4991 cc | 5202 cc |
| Engine Cylinders | 10 cylinders | 10 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 572 HP | 444 HP |
| Engine RPM | 6250 RPM | 7000 RPM |
| Torque | 650 Nm | 540 Nm |
| Torque RPM | 1500 RPM | 3500 RPM |
| Engine Bore Size | 84.5 mm | 84.5 mm |
| Engine Stroke Size | 89 mm | 92.8 mm |
| Engine Compression Ratio | 10.5:1 | 12.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 280 km/hour | 250 km/hour |
| Acceleration 0-100mph | 4.6 seconds | 5.1 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 2028 kg | 1940 kg |
| Vehicle Length | 4930 mm | 5070 mm |
| Vehicle Width | 1900 mm | 1900 mm |
| Vehicle Height | 1470 mm | 1430 mm |
| Wheelbase Size | 2850 mm | 2950 mm |
| Fuel Consumption Overall | 14 L/100km | 13.4 L/100km |
| Fuel Tank Capacity | 80 L | 90 L |
