2008 Audi A8 vs. 2011 Audi S6
To start off, 2011 Audi S6 is newer by 3 year(s). Which means there will be less support and parts availability for 2008 Audi A8. In addition, the cost of maintenance, including insurance, on 2008 Audi A8 would be higher. At 5,998 cc, 2008 Audi A8 is equipped with a bigger engine. In terms of performance, 2008 Audi A8 (445 HP @ 6200 RPM) has 10 more horse power than 2011 Audi S6. (435 HP @ 6800 RPM). In normal driving conditions, 2008 Audi A8 should accelerate faster than 2011 Audi S6. With that said, vehicle weight also plays an important factor in acceleration. 2011 Audi S6 weights approximately 40 kg more than 2008 Audi A8.
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 A8 (580 Nm @ 4000 RPM) has 41 more torque (in Nm) than 2011 Audi S6. (539 Nm @ 3000 RPM). This means 2008 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2011 Audi S6.
Compare all specifications:
| 2008 Audi A8 | 2011 Audi S6 | |
| Make | Audi | Audi |
| Model | A8 | S6 |
| Year Released | 2008 | 2011 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5998 cc | 5200 cc |
| Engine Type | W | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 445 HP | 435 HP |
| Engine RPM | 6200 RPM | 6800 RPM |
| Torque | 580 Nm | 539 Nm |
| Torque RPM | 4000 RPM | 3000 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | AWD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1995 kg | 2035 kg |
| Vehicle Length | 5190 mm | 4915 mm |
| Vehicle Width | 1900 mm | 1864 mm |
| Vehicle Height | 1460 mm | 1458 mm |
| Wheelbase Size | 3080 mm | 2847 mm |
| Fuel Tank Capacity | 90 L | 80 L |
