2005 Audi A6 vs. 2008 Audi S6
To start off, 2008 Audi S6 is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Audi A6. In addition, the cost of maintenance, including insurance, on 2005 Audi A6 would be higher. At 4,172 cc (8 cylinders), 2008 Audi S6 is equipped with a bigger engine. In terms of performance, 2008 Audi S6 (335 HP @ 7000 RPM) has 174 more horse power than 2005 Audi A6. (161 HP @ 4000 RPM) In normal driving conditions, 2008 Audi S6 should accelerate faster than 2005 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi S6 weights approximately 170 kg more than 2005 Audi A6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Audi S6 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Audi A6. In wet, icy, snow, or gravel driving conditions, 2008 Audi S6 will offer significantly more control. 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 (420 Nm @ 3400 RPM) has 110 more torque (in Nm) than 2005 Audi A6. (310 Nm @ 1400 RPM). This means 2008 Audi S6 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A6.
Compare all specifications:
| 2005 Audi A6 | 2008 Audi S6 | |
| Make | Audi | Audi |
| Model | A6 | S6 |
| Year Released | 2005 | 2008 |
| Body Type | Station Wagon | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 2496 cc | 4172 cc |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 161 HP | 335 HP |
| Engine RPM | 4000 RPM | 7000 RPM |
| Torque | 310 Nm | 420 Nm |
| Torque RPM | 1400 RPM | 3400 RPM |
| Engine Compression Ratio | 19.5:1 | 11.0:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 210 km/hour | 250 km/hour |
| Acceleration 0-100mph | 9.5 seconds | 6.8 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1645 kg | 1815 kg |
| Wheelbase Size | 2850 mm | 2770 mm |
| Fuel Consumption Overall | 6.9 L/100km | 14.5 L/100km |
| Fuel Tank Capacity | 70 L | 82 L |
