2009 Audi RS4 vs. 2007 Audi S4
To start off, 2009 Audi RS4 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Audi S4. In addition, the cost of maintenance, including insurance, on 2007 Audi S4 would be higher. Both 2009 Audi RS4 and 2007 Audi S4 are equipped with a 4,163 cc engine. In terms of performance, 2009 Audi RS4 (414 HP @ 7800 RPM) has 73 more horse power than 2007 Audi S4. (341 HP @ 7000 RPM). In normal driving conditions, 2009 Audi RS4 should accelerate faster than 2007 Audi S4.
Let's talk about torque, 2009 Audi RS4 (430 Nm @ 5500 RPM) has 20 more torque (in Nm) than 2007 Audi S4. (410 Nm @ 3500 RPM). This means 2009 Audi RS4 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi S4.
Compare all specifications:
| 2009 Audi RS4 | 2007 Audi S4 | |
| Make | Audi | Audi |
| Model | RS4 | S4 |
| Year Released | 2009 | 2007 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 4163 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 414 HP | 341 HP |
| Engine RPM | 7800 RPM | 7000 RPM |
| Torque | 430 Nm | 410 Nm |
| Torque RPM | 5500 RPM | 3500 RPM |
| Engine Bore Size | 84.5 mm | 84.6 mm |
| Engine Stroke Size | 92.8 mm | 92.7 mm |
| Engine Compression Ratio | 12.5:1 | 11.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 250 km/hour | 249 km/hour |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4590 mm | 4590 mm |
| Vehicle Width | 1820 mm | 1730 mm |
| Vehicle Height | 1420 mm | 1430 mm |
| Wheelbase Size | 2660 mm | 2650 mm |
| Fuel Tank Capacity | 63 L | 63 L |
