2005 Audi S8 vs. 2008 Audi A6
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 S8. In addition, the cost of maintenance, including insurance, on 2005 Audi S8 would be higher. At 4,172 cc (8 cylinders), 2005 Audi S8 is equipped with a bigger engine. In terms of performance, 2005 Audi S8 (247 HP @ 4000 RPM) has 69 more horse power than 2008 Audi A6. (178 HP @ 4000 RPM). In normal driving conditions, 2005 Audi S8 should accelerate faster than 2008 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A6 weights approximately 120 kg more than 2005 Audi S8.
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 S8 (450 Nm @ 3400 RPM) has 80 more torque (in Nm) than 2008 Audi A6. (370 Nm @ 1500 RPM). This means 2005 Audi S8 will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi A6.
Compare all specifications:
| 2005 Audi S8 | 2008 Audi A6 | |
| Make | Audi | Audi |
| Model | S8 | A6 |
| Year Released | 2005 | 2008 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 2496 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 5 valves |
| Horse Power | 247 HP | 178 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Torque | 450 Nm | 370 Nm |
| Torque RPM | 3400 RPM | 1500 RPM |
| Drive Type | AWD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1770 kg | 1890 kg |
| Wheelbase Size | 2290 mm | 2760 mm |
| Fuel Tank Capacity | 90 L | 70 L |
