2009 Audi A8 vs. 2008 Audi S8
To start off, 2009 Audi A8 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Audi S8. In addition, the cost of maintenance, including insurance, on 2008 Audi S8 would be higher. At 5,204 cc (10 cylinders), 2008 Audi S8 is equipped with a bigger engine. In terms of performance, 2008 Audi S8 (450 HP @ 7000 RPM) has 120 more horse power than 2009 Audi A8. (330 HP @ 6500 RPM) In normal driving conditions, 2008 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 679 kg more than 2008 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 S8 (540 Nm @ 3500 RPM) has 110 more torque (in Nm) than 2009 Audi A8. (430 Nm @ 3500 RPM). This means 2008 Audi S8 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A8.
Compare all specifications:
2009 Audi A8 | 2008 Audi S8 | |
Make | Audi | Audi |
Model | A8 | S8 |
Year Released | 2009 | 2008 |
Body Type | Sedan | Sedan |
Engine Position | Front | Front |
Engine Size | 4172 cc | 5204 cc |
Engine Cylinders | 8 cylinders | 10 cylinders |
Engine Type | V | V |
Valves per Cylinder | 5 valves | 4 valves |
Horse Power | 330 HP | 450 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 - Premium |
Top Speed | 250 km/hour | 249 km/hour |
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 | 1176 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 | 15.7 L/100km |
Fuel Tank Capacity | 90 L | 90 L |