2005 Audi RS6 vs. 2004 Audi A6
To start off, 2005 Audi RS6 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 4,163 cc (8 cylinders), 2005 Audi RS6 is equipped with a bigger engine. In terms of performance, 2005 Audi RS6 (444 HP @ 6300 RPM) has 265 more horse power than 2004 Audi A6. (179 HP @ 3300 RPM). In normal driving conditions, 2005 Audi RS6 should accelerate faster than 2004 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi RS6 weights approximately 285 kg more than 2004 Audi A6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi RS6 is four wheel drive (4WD), it will have significant more traction and grip than 2004 Audi A6. In wet, icy, snow, or gravel driving conditions, 2005 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, 2005 Audi RS6 (560 Nm @ 1950 RPM) has 190 more torque (in Nm) than 2004 Audi A6. (370 Nm @ 1400 RPM). This means 2005 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A6.
Compare all specifications:
| 2005 Audi RS6 | 2004 Audi A6 | |
| Make | Audi | Audi |
| Model | RS6 | A6 |
| Year Released | 2005 | 2004 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 2696 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 444 HP | 179 HP |
| Engine RPM | 6300 RPM | 3300 RPM |
| Torque | 560 Nm | 370 Nm |
| Torque RPM | 1950 RPM | 1400 RPM |
| Engine Bore Size | 84.5 mm | 83 mm |
| Engine Stroke Size | 93 mm | 83.1 mm |
| Engine Compression Ratio | 9.0:1 | 17.0:1 |
| Fuel Type | Gasoline | Diesel |
| Acceleration 0-100mph | 4.7 seconds | 8.1 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1910 kg | 1625 kg |
| Vehicle Length | 4800 mm | 4920 mm |
| Vehicle Width | 1820 mm | 1860 mm |
| Vehicle Height | 1460 mm | 1470 mm |
| Wheelbase Size | 2660 mm | 2660 mm |
| Fuel Consumption Overall | 14.8 L/100km | 6.8 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
