2005 Audi RS6 vs. 2013 BMW 6 series
To start off, 2013 BMW 6 series is newer by 8 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 4,395 cc (8 cylinders), 2013 BMW 6 series is equipped with a bigger engine. In terms of performance, 2005 Audi RS6 (444 HP @ 5700 RPM) has 5 more horse power than 2013 BMW 6 series. (439 HP @ 6000 RPM). In normal driving conditions, 2005 Audi RS6 should accelerate faster than 2013 BMW 6 series. With that said, vehicle weight also plays an important factor in acceleration. 2013 BMW 6 series weights approximately 124 kg more than 2005 Audi RS6.
Because 2005 Audi RS6 is four wheel drive (4WD), it will have significant more traction and grip than 2013 BMW 6 series. 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, 2013 BMW 6 series (651 Nm @ 4500 RPM) has 91 more torque (in Nm) than 2005 Audi RS6. (560 Nm @ 1950 RPM). This means 2013 BMW 6 series will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi RS6.
Compare all specifications:
| 2005 Audi RS6 | 2013 BMW 6 series | |
| Make | Audi | BMW |
| Model | RS6 | 6 series |
| Year Released | 2005 | 2013 |
| Body Type | Station Wagon | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 4395 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 444 HP | 439 HP |
| Engine RPM | 5700 RPM | 6000 RPM |
| Torque | 560 Nm | 651 Nm |
| Torque RPM | 1950 RPM | 4500 RPM |
| Acceleration 0-100mph | 4.9 seconds | 4.5 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | 8-speed automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1815 kg | 1939 kg |
| Vehicle Length | 4860 mm | 5009 mm |
| Vehicle Width | 1860 mm | 2081 mm |
| Vehicle Height | 1460 mm | 1392 mm |
| Wheelbase Size | 2850 mm | 2968 mm |
| Fuel Consumption Highway | 10.4 L/100km | 7.1 L/100km |
| Fuel Tank Capacity | 82 L | 70 L |
