2003 Audi RS6 vs. 2007 Audi S4
To start off, 2007 Audi S4 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Audi RS6. In addition, the cost of maintenance, including insurance, on 2003 Audi RS6 would be higher. Both 2003 Audi RS6 and 2007 Audi S4 are equipped with a 4,163 cc engine. In terms of performance, 2003 Audi RS6 (444 HP @ 6300 RPM) has 104 more horse power than 2007 Audi S4. (340 HP @ 7000 RPM). In normal driving conditions, 2003 Audi RS6 should accelerate faster than 2007 Audi S4. With that said, vehicle weight also plays an important factor in acceleration. 2003 Audi RS6 weights approximately 635 kg more than 2007 Audi S4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2003 Audi RS6 (560 Nm @ 1950 RPM) has 149 more torque (in Nm) than 2007 Audi S4. (411 Nm @ 3500 RPM). This means 2003 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi S4.
Compare all specifications:
| 2003 Audi RS6 | 2007 Audi S4 | |
| Make | Audi | Audi |
| Model | RS6 | S4 |
| Year Released | 2003 | 2007 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 4163 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 5 valves |
| Horse Power | 444 HP | 340 HP |
| Engine RPM | 6300 RPM | 7000 RPM |
| Torque | 560 Nm | 411 Nm |
| Torque RPM | 1950 RPM | 3500 RPM |
| Engine Bore Size | 84.5 mm | 84.5 mm |
| Engine Stroke Size | 93 mm | 93 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 250 km/hour | 250 km/hour |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1910 kg | 1275 kg |
| Vehicle Length | 4860 mm | 4580 mm |
| Vehicle Width | 1860 mm | 1790 mm |
| Vehicle Height | 1460 mm | 1450 mm |
| Wheelbase Size | 2760 mm | 2660 mm |
| Fuel Consumption | 10.4 L/100km | 11.2 L/100km |
| Fuel Consumption City | 21.8 L/100km | 15.7 L/100km |
| Fuel Consumption Overall | 14.6 L/100km | 13.8 L/100km |
| Fuel Tank Capacity | 82 L | 63 L |
