2008 Audi A6 vs. 2005 Audi S6
To start off, 2008 Audi A6 is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Audi S6. In addition, the cost of maintenance, including insurance, on 2005 Audi S6 would be higher. At 4,172 cc (8 cylinders), 2005 Audi S6 is equipped with a bigger engine. In terms of performance, 2005 Audi S6 (335 HP @ 7000 RPM) has 157 more horse power than 2008 Audi A6. (178 HP @ 3300 RPM) In normal driving conditions, 2005 Audi S6 should accelerate faster than 2008 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A6 weights approximately 60 kg more than 2005 Audi S6.
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, 2005 Audi S6 (420 Nm @ 3400 RPM) has 40 more torque (in Nm) than 2008 Audi A6. (380 Nm @ 1400 RPM). This means 2005 Audi S6 will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi A6.
Compare all specifications:
| 2008 Audi A6 | 2005 Audi S6 | |
| Make | Audi | Audi |
| Model | A6 | S6 |
| Year Released | 2008 | 2005 |
| Body Type | Station Wagon | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 2698 cc | 4172 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 178 HP | 335 HP |
| Engine RPM | 3300 RPM | 7000 RPM |
| Torque | 380 Nm | 420 Nm |
| Torque RPM | 1400 RPM | 3400 RPM |
| Engine Bore Size | 83 mm | 84.5 mm |
| Engine Stroke Size | 83.1 mm | 93 mm |
| Engine Compression Ratio | 17.5:1 | 11.0:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 215 km/hour | 250 km/hour |
| Acceleration 0-100mph | 9.6 seconds | 6.8 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1875 kg | 1815 kg |
| Vehicle Length | 4940 mm | 4840 mm |
| Vehicle Width | 1870 mm | 1860 mm |
| Vehicle Height | 1530 mm | 1450 mm |
| Wheelbase Size | 2840 mm | 2660 mm |
| Fuel Consumption Overall | 8.7 L/100km | 14.5 L/100km |
| Fuel Tank Capacity | 80 L | 82 L |
