2004 Audi A6 vs. 2005 Audi RS4
To start off, 2005 Audi RS4 is newer by 1 year(s). Which means there will be less support and parts availability for 2004 Audi A6. In addition, the cost of maintenance, including insurance, on 2004 Audi A6 would be higher. At 2,976 cc (6 cylinders), 2004 Audi A6 is equipped with a bigger engine. In terms of performance, 2005 Audi RS4 (376 HP @ 6300 RPM) has 129 more horse power than 2004 Audi A6. (247 HP @ 6500 RPM) In normal driving conditions, 2005 Audi RS4 should accelerate faster than 2004 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A6 weights approximately 115 kg more than 2005 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, 2005 Audi RS4 (449 Nm @ 2500 RPM) has 119 more torque (in Nm) than 2004 Audi A6. (330 Nm @ 3250 RPM). This means 2005 Audi RS4 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A6.
Compare all specifications:
| 2004 Audi A6 | 2005 Audi RS4 | |
| Make | Audi | Audi |
| Model | A6 | RS4 |
| Year Released | 2004 | 2005 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2976 cc | 2671 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 247 HP | 376 HP |
| Engine RPM | 6500 RPM | 6300 RPM |
| Torque | 330 Nm | 449 Nm |
| Torque RPM | 3250 RPM | 2500 RPM |
| Engine Compression Ratio | 12.5:1 | 12.5:1 |
| Top Speed | 250 km/hour | 245 km/hour |
| Acceleration 0-100mph | 7 seconds | 4.8 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1700 kg | 1585 kg |
| Vehicle Length | 4940 mm | 4600 mm |
| Vehicle Width | 1860 mm | 1820 mm |
| Vehicle Height | 1470 mm | 1420 mm |
| Wheelbase Size | 2850 mm | 2610 mm |
| Fuel Consumption | 7.8 L/100km | 10.1 L/100km |
| Fuel Consumption City | 16.7 L/100km | 19.7 L/100km |
| Fuel Consumption Overall | 11 L/100km | 13.7 L/100km |
| Fuel Tank Capacity | 80 L | 55 L |
