2009 Audi A6 vs. 2008 Audi S6
To start off, 2009 Audi A6 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Audi S6. In addition, the cost of maintenance, including insurance, on 2008 Audi S6 would be higher. At 5,202 cc (10 cylinders), 2008 Audi S6 is equipped with a bigger engine. In terms of performance, 2008 Audi S6 (429 HP @ 6800 RPM) has 87 more horse power than 2009 Audi A6. (342 HP @ 6500 RPM) In normal driving conditions, 2008 Audi S6 should accelerate faster than 2009 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi S6 weights approximately 370 kg more than 2009 Audi A6. 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, 2008 Audi S6 (540 Nm @ 3000 RPM) has 297 more torque (in Nm) than 2009 Audi A6. (243 Nm @ 3250 RPM). This means 2008 Audi S6 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A6.
Compare all specifications:
| 2009 Audi A6 | 2008 Audi S6 | |
| Make | Audi | Audi |
| Model | A6 | S6 |
| Year Released | 2009 | 2008 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3129 cc | 5202 cc |
| Engine Cylinders | 6 cylinders | 10 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 342 HP | 429 HP |
| Engine RPM | 6500 RPM | 6800 RPM |
| Torque | 243 Nm | 540 Nm |
| Torque RPM | 3250 RPM | 3000 RPM |
| Engine Bore Size | 84.6 mm | 84.5 mm |
| Engine Stroke Size | 92.7 mm | 92.8 mm |
| Engine Compression Ratio | 12.5:1 | 12.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 209 km/hour | 250 km/hour |
| Acceleration 0-100mph | 7.3 seconds | 5.2 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 | 1540 kg | 1910 kg |
| Vehicle Length | 4920 mm | 4920 mm |
| Vehicle Width | 1470 mm | 1870 mm |
| Vehicle Height | 1860 mm | 1460 mm |
| Wheelbase Size | 2850 mm | 2850 mm |
| Fuel Consumption Overall | 15.5 L/100km | 13.4 L/100km |
| Fuel Tank Capacity | 70 L | 80 L |
