2003 Audi RS6 vs. 2006 Audi A4
To start off, 2006 Audi A4 is newer by 3 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. At 4,163 cc (8 cylinders), 2003 Audi RS6 is equipped with a bigger engine. In terms of performance, 2003 Audi RS6 (444 HP @ 6300 RPM) has 330 more horse power than 2006 Audi A4. (114 HP @ 4000 RPM). In normal driving conditions, 2003 Audi RS6 should accelerate faster than 2006 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2003 Audi RS6 weights approximately 435 kg more than 2006 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 Audi RS6 is four wheel drive (4WD), it will have significant more traction and grip than 2006 Audi A4. In wet, icy, snow, or gravel driving conditions, 2003 Audi RS6 will offer significantly more control. 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 274 more torque (in Nm) than 2006 Audi A4. (286 Nm @ 1900 RPM). This means 2003 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi A4.
Compare all specifications:
| 2003 Audi RS6 | 2006 Audi A4 | |
| Make | Audi | Audi |
| Model | RS6 | A4 |
| Year Released | 2003 | 2006 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 1896 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 444 HP | 114 HP |
| Engine RPM | 6300 RPM | 4000 RPM |
| Torque | 560 Nm | 286 Nm |
| Torque RPM | 1950 RPM | 1900 RPM |
| Engine Bore Size | 84.5 mm | 79.5 mm |
| Engine Stroke Size | 93 mm | 95.5 mm |
| Fuel Type | Gasoline | Diesel |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1840 kg | 1405 kg |
| Vehicle Length | 4800 mm | 4550 mm |
| Vehicle Width | 1820 mm | 1780 mm |
| Vehicle Height | 1460 mm | 1430 mm |
| Wheelbase Size | 2760 mm | 2660 mm |
| Fuel Tank Capacity | 70 L | 70 L |
