2009 Audi A8 vs. 2007 Audi S8
To start off, 2009 Audi A8 is newer by 2 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 215 more horse power than 2009 Audi A8. (229 HP @ 4000 RPM) In normal driving conditions, 2007 Audi S8 should accelerate faster than 2009 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi S8 weights approximately 110 kg more than 2009 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 @ 3400 RPM) has 90 more torque (in Nm) than 2009 Audi A8. (450 Nm @ 1400 RPM). This means 2007 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 | 2007 Audi S8 | |
Make | Audi | Audi |
Model | A8 | S8 |
Year Released | 2009 | 2007 |
Body Type | Sedan | Sedan |
Engine Position | Front | Front |
Engine Size | 2966 cc | 5204 cc |
Engine Cylinders | 6 cylinders | 10 cylinders |
Engine Type | V | V |
Valves per Cylinder | 4 valves | 4 valves |
Horse Power | 229 HP | 444 HP |
Engine RPM | 4000 RPM | 7000 RPM |
Torque | 450 Nm | 540 Nm |
Torque RPM | 1400 RPM | 3400 RPM |
Engine Bore Size | 83 mm | 84.5 mm |
Engine Stroke Size | 91.4 mm | 92.8 mm |
Engine Compression Ratio | 17.0:1 | 12.5:1 |
Fuel Type | Diesel | Gasoline |
Top Speed | 243 km/hour | 260 km/hour |
Acceleration 0-100mph | 7.8 seconds | 5.4 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 | 1940 kg |
Vehicle Height | 1900 mm | 1430 mm |
Wheelbase Size | 2950 mm | 2950 mm |
Fuel Tank Capacity | 90 L | 90 L |