2009 Audi A8 vs. 2010 Audi S8
To start off, 2010 Audi S8 is newer by 1 year(s). Which means there will be less support and parts availability for 2009 Audi A8. In addition, the cost of maintenance, including insurance, on 2009 Audi A8 would be higher. Both 2009 Audi A8 and 2010 Audi S8 are equipped with a 5,204 cc engine. In terms of performance, 2010 Audi S8 (450 HP @ 7000 RPM) has 6 more horse power than 2009 Audi A8. (444 HP @ 7000 RPM) In normal driving conditions, 2010 Audi S8 should accelerate faster than 2009 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A8 weights approximately 765 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, both vehicles can yield 540 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles.
Compare all specifications:
| 2009 Audi A8 | 2010 Audi S8 | |
| Make | Audi | Audi |
| Model | A8 | S8 |
| Year Released | 2009 | 2010 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5204 cc | 5204 cc |
| Engine Cylinders | 10 cylinders | 10 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 444 HP | 450 HP |
| Engine RPM | 7000 RPM | 7000 RPM |
| Torque | 540 Nm | 540 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Engine Compression Ratio | 12.5:1 | 12.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Acceleration 0-100mph | 5.1 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 | 1940 kg | 1175 kg |
| Vehicle Length | 5070 mm | 5070 mm |
| Vehicle Width | 1900 mm | 1900 mm |
| Vehicle Height | 1430 mm | 1430 mm |
| Wheelbase Size | 2950 mm | 2950 mm |
| Fuel Consumption | 12.4 L/100km | 12.4 L/100km |
| Fuel Consumption City | 18.2 L/100km | 18.2 L/100km |
| Fuel Consumption Overall | 15.8 L/100km | 15.8 L/100km |
| Fuel Tank Capacity | 90 L | 90 L |
