2009 Audi A8 vs. 2009 Audi RS6
To start off, both 2009 Audi A8 and 2009 Audi RS6 were released in the same year (2009). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 4,991 cc (10 cylinders), 2009 Audi RS6 is equipped with a bigger engine. In terms of performance, 2009 Audi RS6 (572 HP @ 6250 RPM) has 222 more horse power than 2009 Audi A8. (350 HP @ 6800 RPM) In normal driving conditions, 2009 Audi RS6 should accelerate faster than 2009 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi RS6 weights approximately 864 kg more than 2009 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 209 more torque (in Nm) than 2009 Audi A8. (441 Nm @ 3500 RPM). This means 2009 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A8.
Compare all specifications:
| 2009 Audi A8 | 2009 Audi RS6 | |
| Make | Audi | Audi |
| Model | A8 | RS6 |
| Year Released | 2009 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 4991 cc |
| Engine Cylinders | 8 cylinders | 10 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 350 HP | 572 HP |
| Engine RPM | 6800 RPM | 6250 RPM |
| Torque | 441 Nm | 650 Nm |
| Torque RPM | 3500 RPM | 1500 RPM |
| Engine Bore Size | 84.5 mm | 84.5 mm |
| Engine Stroke Size | 92.8 mm | 89 mm |
| Engine Compression Ratio | 12.5:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1164 kg | 2028 kg |
| Vehicle Length | 5200 mm | 4930 mm |
| Vehicle Width | 1900 mm | 1900 mm |
| Vehicle Height | 1460 mm | 1460 mm |
| Wheelbase Size | 3080 mm | 2850 mm |
| Fuel Consumption Overall | 13.1 L/100km | 6.8 L/100km |
| Fuel Tank Capacity | 90 L | 80 L |
