2007 Audi RS4 vs. 2008 Audi S5
To start off, 2008 Audi S5 is newer by 1 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. At 4,163 cc (8 cylinders), 2008 Audi S5 is equipped with a bigger engine. In terms of performance, 2007 Audi RS4 (414 HP @ 7800 RPM) has 60 more horse power than 2008 Audi S5. (354 HP @ 6800 RPM). In normal driving conditions, 2007 Audi RS4 should accelerate faster than 2008 Audi S5. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi S5 weights approximately 55 kg more than 2007 Audi RS4.
Both vehicles are four wheel drive (4WD) - 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, 2008 Audi S5 (441 Nm @ 3500 RPM) has 11 more torque (in Nm) than 2007 Audi RS4. (430 Nm @ 5500 RPM). This means 2008 Audi S5 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi RS4.
Compare all specifications:
| 2007 Audi RS4 | 2008 Audi S5 | |
| Make | Audi | Audi |
| Model | RS4 | S5 |
| Year Released | 2007 | 2008 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4161 cc | 4163 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 414 HP | 354 HP |
| Engine RPM | 7800 RPM | 6800 RPM |
| Torque | 430 Nm | 441 Nm |
| Torque RPM | 5500 RPM | 3500 RPM |
| Engine Bore Size | 84.5 mm | 84.5 mm |
| Engine Stroke Size | 92.8 mm | 92.8 mm |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 250 km/hour | 249 km/hour |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1710 kg | 1765 kg |
| Vehicle Length | 4590 mm | 4640 mm |
| Vehicle Width | 1820 mm | 1990 mm |
| Vehicle Height | 1420 mm | 1380 mm |
| Wheelbase Size | 2660 mm | 2760 mm |
| Fuel Consumption Overall | 13.5 L/100km | 7.8 L/100km |
| Fuel Tank Capacity | 70 L | 63 L |
