2009 Audi A6 vs. 2004 Audi RS6
To start off, 2009 Audi A6 is newer by 5 year(s). Which means there will be less support and parts availability for 2004 Audi RS6. In addition, the cost of maintenance, including insurance, on 2004 Audi RS6 would be higher. At 4,163 cc (8 cylinders), 2004 Audi RS6 is equipped with a bigger engine. In terms of performance, 2004 Audi RS6 (444 HP @ 6300 RPM) has 266 more horse power than 2009 Audi A6. (178 HP @ 3300 RPM) In normal driving conditions, 2004 Audi RS6 should accelerate faster than 2009 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi RS6 weights approximately 750 kg more than 2009 Audi A6. 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, 2004 Audi RS6 (560 Nm @ 1950 RPM) has 180 more torque (in Nm) than 2009 Audi A6. (380 Nm @ 1400 RPM). This means 2004 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A6.
Compare all specifications:
| 2009 Audi A6 | 2004 Audi RS6 | |
| Make | Audi | Audi |
| Model | A6 | RS6 |
| Year Released | 2009 | 2004 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 2698 cc | 4163 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 178 HP | 444 HP |
| Engine RPM | 3300 RPM | 6300 RPM |
| Torque | 380 Nm | 560 Nm |
| Torque RPM | 1400 RPM | 1950 RPM |
| Engine Bore Size | 83 mm | 84.5 mm |
| Engine Stroke Size | 83.1 mm | 93 mm |
| Engine Compression Ratio | 17.0:1 | 9.3:1 |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 228 km/hour | 250 km/hour |
| Drive Type | 4WD | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1160 kg | 1910 kg |
| Vehicle Length | 4920 mm | 4860 mm |
| Vehicle Width | 1860 mm | 1860 mm |
| Vehicle Height | 1470 mm | 1400 mm |
| Wheelbase Size | 2850 mm | 2770 mm |
| Fuel Consumption Overall | 8.7 L/100km | 14.6 L/100km |
| Fuel Tank Capacity | 80 L | 82 L |
