2007 Audi RS4 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 RS4. In addition, the cost of maintenance, including insurance, on 2007 Audi RS4 would be higher. Both 2007 Audi RS4 and 2009 Audi R8 are equipped with a 4,163 cc engine. In terms of performance, 2009 Audi R8 (420 HP @ 7800 RPM) has 6 more horse power than 2007 Audi RS4. (414 HP @ 7800 RPM) In normal driving conditions, 2009 Audi R8 should accelerate faster than 2007 Audi RS4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi RS4 weights approximately 755 kg more than 2009 Audi R8.
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 RS4 (431 Nm @ 5500 RPM) has 1 more torque (in Nm) than 2009 Audi R8. (430 Nm @ 4500 RPM). This means 2007 Audi RS4 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi R8.
Compare all specifications:
| 2007 Audi RS4 | 2009 Audi R8 | |
| Make | Audi | Audi |
| Model | RS4 | R8 |
| Year Released | 2007 | 2009 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Middle |
| Engine Size | 4163 cc | 4163 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 414 HP | 420 HP |
| Engine RPM | 7800 RPM | 7800 RPM |
| Torque | 431 Nm | 430 Nm |
| Torque RPM | 5500 RPM | 4500 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | AWD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1650 kg | 895 kg |
| Vehicle Length | 4590 mm | 4440 mm |
| Vehicle Width | 1820 mm | 1910 mm |
| Vehicle Height | 1420 mm | 1260 mm |
| Wheelbase Size | 2660 mm | 2660 mm |
| Fuel Consumption Overall | 13.6 L/100km | 15.7 L/100km |
| Fuel Tank Capacity | 63 L | 90 L |
