2008 Audi A8 vs. 2010 Audi S8
To start off, 2010 Audi S8 is newer by 2 year(s). Which means there will be less support and parts availability for 2008 Audi A8. In addition, the cost of maintenance, including insurance, on 2008 Audi A8 would be higher. At 5,204 cc (10 cylinders), 2010 Audi S8 is equipped with a bigger engine. In terms of performance, 2010 Audi S8 (450 HP @ 7000 RPM) has 220 more horse power than 2008 Audi A8. (230 HP @ 4000 RPM) In normal driving conditions, 2010 Audi S8 should accelerate faster than 2008 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A8 weights approximately 655 kg more than 2010 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, 2010 Audi S8 (540 Nm @ 3500 RPM) has 90 more torque (in Nm) than 2008 Audi A8. (450 Nm @ 1400 RPM). This means 2010 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 | 2010 Audi S8 | |
| Make | Audi | Audi |
| Model | A8 | S8 |
| Year Released | 2008 | 2010 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2967 cc | 5204 cc |
| Engine Cylinders | 6 cylinders | 10 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 230 HP | 450 HP |
| Engine RPM | 4000 RPM | 7000 RPM |
| Torque | 450 Nm | 540 Nm |
| Torque RPM | 1400 RPM | 3500 RPM |
| Engine Compression Ratio | 17.0:1 | 12.5:1 |
| Fuel Type | Diesel | Gasoline |
| Acceleration 0-100mph | 7.9 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 | 1830 kg | 1175 kg |
| Vehicle Length | 5190 mm | 5070 mm |
| Vehicle Width | 1900 mm | 1900 mm |
| Vehicle Height | 1450 mm | 1430 mm |
| Wheelbase Size | 3080 mm | 2950 mm |
| Fuel Consumption Overall | 8.4 L/100km | 15.8 L/100km |
| Fuel Tank Capacity | 90 L | 90 L |
