2009 Audi A6 vs. 2005 Audi RS6
To start off, 2009 Audi A6 is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Audi RS6. In addition, the cost of maintenance, including insurance, on 2005 Audi RS6 would be higher. At 4,171 cc (8 cylinders), 2005 Audi RS6 is equipped with a bigger engine. In terms of performance, 2005 Audi RS6 (444 HP @ 5700 RPM) has 269 more horse power than 2009 Audi A6. (175 HP @ 6000 RPM) In normal driving conditions, 2005 Audi RS6 should accelerate faster than 2009 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi RS6 weights approximately 310 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.
Because 2005 Audi RS6 is four wheel drive (4WD), it will have significant more traction and grip than 2009 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 329 more torque (in Nm) than 2009 Audi A6. (231 Nm @ 3200 RPM). This means 2005 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 | 2005 Audi RS6 | |
| Make | Audi | Audi |
| Model | A6 | RS6 |
| Year Released | 2009 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2393 cc | 4171 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 5 valves |
| Horse Power | 175 HP | 444 HP |
| Engine RPM | 6000 RPM | 5700 RPM |
| Torque | 231 Nm | 560 Nm |
| Torque RPM | 3200 RPM | 1950 RPM |
| Acceleration 0-100mph | 8.9 seconds | 4.7 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1515 kg | 1825 kg |
| Vehicle Length | 4920 mm | 4800 mm |
| Vehicle Height | 1470 mm | 1460 mm |
| Wheelbase Size | 2850 mm | 2770 mm |
| Fuel Consumption Overall | 9.7 L/100km | 14.6 L/100km |
| Fuel Tank Capacity | 70 L | 82 L |
