2007 Audi S8 vs. 2008 Audi A8
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 5,998 cc, 2008 Audi A8 is equipped with a bigger engine. In terms of performance, 2008 Audi A8 (450 HP @ 6200 RPM) has 6 more horse power than 2007 Audi S8. (444 HP @ 7000 RPM) In normal driving conditions, 2008 Audi A8 should accelerate faster than 2007 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, 2008 Audi A8 (580 Nm @ 4000 RPM) has 40 more torque (in Nm) than 2007 Audi S8. (540 Nm @ 3500 RPM). This means 2008 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi S8.
Compare all specifications:
| 2007 Audi S8 | 2008 Audi A8 | |
| Make | Audi | Audi |
| Model | S8 | A8 |
| Year Released | 2007 | 2008 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5204 cc | 5998 cc |
| Engine Type | V | W |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 444 HP | 450 HP |
| Engine RPM | 7000 RPM | 6200 RPM |
| Torque | 540 Nm | 580 Nm |
| Torque RPM | 3500 RPM | 4000 RPM |
| Engine Bore Size | 84.5 mm | 84 mm |
| Engine Stroke Size | 92.8 mm | 90.2 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | AWD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 5070 mm | 5200 mm |
| Vehicle Width | 1900 mm | 1900 mm |
| Vehicle Height | 1430 mm | 1460 mm |
| Wheelbase Size | 2950 mm | 3080 mm |
| Fuel Consumption Overall | 13.6 L/100km | 13.8 L/100km |
| Fuel Tank Capacity | 90 L | 90 L |
