2007 Audi A8 vs. 2005 Audi S6
To start off, 2007 Audi A8 is newer by 2 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) has 79 more horse power than 2007 Audi A8. (256 HP) In normal driving conditions, 2005 Audi S6 should accelerate faster than 2007 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A8 weights approximately 65 kg more than 2005 Audi S6.
Because 2005 Audi S6 is four wheel drive (4WD), it will have significant more traction and grip than 2007 Audi A8. In wet, icy, snow, or gravel driving conditions, 2005 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, 2005 Audi S6 (420 Nm @ 3400 RPM) has 90 more torque (in Nm) than 2007 Audi A8. (330 Nm @ 3250 RPM). This means 2005 Audi S6 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A8.
Compare all specifications:
| 2007 Audi A8 | 2005 Audi S6 | |
| Make | Audi | Audi |
| Model | A8 | S6 |
| Year Released | 2007 | 2005 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 3123 cc | 4172 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 5 valves |
| Horse Power | 256 HP | 335 HP |
| Torque | 330 Nm | 420 Nm |
| Torque RPM | 3250 RPM | 3400 RPM |
| Engine Bore Size | 84.5 mm | 84.5 mm |
| Engine Stroke Size | 92.8 mm | 93 mm |
| Engine Compression Ratio | 13.0:1 | 11.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 8 seconds | 6.8 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1880 kg | 1815 kg |
| Vehicle Length | 5060 mm | 4840 mm |
| Vehicle Width | 1900 mm | 1860 mm |
| Vehicle Height | 1450 mm | 1450 mm |
| Wheelbase Size | 2950 mm | 2660 mm |
| Fuel Consumption Overall | 9.8 L/100km | 14.5 L/100km |
| Fuel Tank Capacity | 90 L | 82 L |
