2008 Audi A8 vs. 2007 Audi S8
To start off, 2008 Audi A8 is newer by 1 year(s). Which means there will be less support and parts availability for 2007 Audi S8. In addition, the cost of maintenance, including insurance, on 2007 Audi S8 would be higher. At 5,204 cc (10 cylinders), 2007 Audi S8 is equipped with a bigger engine. In terms of performance, 2007 Audi S8 (444 HP @ 7000 RPM) has 114 more horse power than 2008 Audi A8. (330 HP @ 6500 RPM) In normal driving conditions, 2007 Audi S8 should accelerate faster than 2008 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi S8 weights approximately 85 kg more than 2008 Audi A8. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2007 Audi S8 (540 Nm @ 3500 RPM) has 110 more torque (in Nm) than 2008 Audi A8. (430 Nm @ 3500 RPM). This means 2007 Audi S8 will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi A8.
Compare all specifications:
| 2008 Audi A8 | 2007 Audi S8 | |
| Make | Audi | Audi |
| Model | A8 | S8 |
| Year Released | 2008 | 2007 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4171 cc | 5204 cc |
| Engine Cylinders | 8 cylinders | 10 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 330 HP | 444 HP |
| Engine RPM | 6500 RPM | 7000 RPM |
| Torque | 430 Nm | 540 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Engine Bore Size | 84.5 mm | 84.5 mm |
| Engine Stroke Size | 93 mm | 92.8 mm |
| Engine Compression Ratio | 11.0:1 | 12.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 6.3 seconds | 5.1 seconds |
| Drive Type | 4WD | AWD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1855 kg | 1940 kg |
| Vehicle Length | 5060 mm | 5070 mm |
| Vehicle Width | 1900 mm | 1900 mm |
| Vehicle Height | 1450 mm | 1430 mm |
| Wheelbase Size | 2950 mm | 2950 mm |
| Fuel Consumption Overall | 11.9 L/100km | 13.6 L/100km |
| Fuel Tank Capacity | 90 L | 90 L |
