2007 Audi S8 vs. 2009 Audi R8
To start off, 2009 Audi R8 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 (450 HP @ 7000 RPM) has 36 more horse power than 2009 Audi R8. (414 HP @ 7800 RPM). In normal driving conditions, 2007 Audi S8 should accelerate faster than 2009 Audi R8.
Both vehicles are all wheel drive (AWD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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 (541 Nm @ 3500 RPM) has 111 more torque (in Nm) than 2009 Audi R8. (430 Nm @ 4500 RPM). This means 2007 Audi S8 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi R8.
Compare all specifications:
| 2007 Audi S8 | 2009 Audi R8 | |
| Make | Audi | Audi |
| Model | S8 | R8 |
| Year Released | 2007 | 2009 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Middle |
| Engine Size | 5204 cc | 4163 cc |
| Engine Cylinders | 10 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 450 HP | 414 HP |
| Engine RPM | 7000 RPM | 7800 RPM |
| Torque | 541 Nm | 430 Nm |
| Torque RPM | 3500 RPM | 4500 RPM |
| Engine Bore Size | 84.5 mm | 84.5 mm |
| Engine Stroke Size | 92.8 mm | 92.8 mm |
| Fuel Type | Diesel | Gasoline - Premium |
| Drive Type | AWD | AWD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Length | 5070 mm | 4440 mm |
| Vehicle Width | 1900 mm | 1910 mm |
| Vehicle Height | 1430 mm | 1260 mm |
| Wheelbase Size | 2950 mm | 2660 mm |
| Fuel Consumption Overall | 13.8 L/100km | 13.8 L/100km |
| Fuel Tank Capacity | 90 L | 75 L |
