2004 Audi S4 vs. 2006 Audi RS4
To start off, 2006 Audi RS4 is newer by 2 year(s). Which means there will be less support and parts availability for 2004 Audi S4. In addition, the cost of maintenance, including insurance, on 2004 Audi S4 would be higher. Both 2004 Audi S4 and 2006 Audi RS4 are equipped with a 4,163 cc engine. In terms of performance, 2006 Audi RS4 (414 HP @ 7800 RPM) has 74 more horse power than 2004 Audi S4. (340 HP @ 6200 RPM) In normal driving conditions, 2006 Audi RS4 should accelerate faster than 2004 Audi S4. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi S4 weights approximately 245 kg more than 2006 Audi RS4.
Let's talk about torque, 2006 Audi RS4 (430 Nm) has 19 more torque (in Nm) than 2004 Audi S4. (411 Nm). This means 2006 Audi RS4 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi S4.
Compare all specifications:
| 2004 Audi S4 | 2006 Audi RS4 | |
| Make | Audi | Audi |
| Model | S4 | RS4 |
| Year Released | 2004 | 2006 |
| Body Type | Convertible | Sedan |
| 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 | 4 valves |
| Horse Power | 340 HP | 414 HP |
| Engine RPM | 6200 RPM | 7800 RPM |
| Torque | 411 Nm | 430 Nm |
| Engine Bore Size | 85 mm | 84.5 mm |
| Engine Stroke Size | 93 mm | 92.8 mm |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1895 kg | 1650 kg |
| Vehicle Length | 4580 mm | 4590 mm |
| Vehicle Width | 1780 mm | 1820 mm |
| Vehicle Height | 1400 mm | 1420 mm |
| Wheelbase Size | 2770 mm | 2660 mm |
| Fuel Consumption Overall | 11.8 L/100km | 13.6 L/100km |
| Fuel Tank Capacity | 63 L | 63 L |
