2005 Audi RS6 vs. 2008 Mercedes-Benz R
To start off, 2008 Mercedes-Benz R is newer by 3 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 223 more horse power than 2008 Mercedes-Benz R. (221 HP @ 3800 RPM). In normal driving conditions, 2005 Audi RS6 should accelerate faster than 2008 Mercedes-Benz R. With that said, vehicle weight also plays an important factor in acceleration. 2008 Mercedes-Benz R weights approximately 470 kg more than 2005 Audi RS6.
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 RS6 (560 Nm @ 1950 RPM) has 50 more torque (in Nm) than 2008 Mercedes-Benz R. (510 Nm @ 1600 RPM). This means 2005 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 2008 Mercedes-Benz R.
Compare all specifications:
| 2005 Audi RS6 | 2008 Mercedes-Benz R | |
| Make | Audi | Mercedes-Benz |
| Model | RS6 | R |
| Year Released | 2005 | 2008 |
| Body Type | Sedan | Minivan |
| Engine Position | Front | Front |
| Engine Size | 4171 cc | 2987 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 444 HP | 221 HP |
| Engine RPM | 5700 RPM | 3800 RPM |
| Torque | 560 Nm | 510 Nm |
| Torque RPM | 1950 RPM | 1600 RPM |
| Acceleration 0-100mph | 4.7 seconds | 8.8 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 6 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1825 kg | 2295 kg |
| Vehicle Length | 4800 mm | 5180 mm |
| Vehicle Height | 1460 mm | 1670 mm |
| Wheelbase Size | 2770 mm | 3220 mm |
| Fuel Consumption Overall | 14.6 L/100km | 9.3 L/100km |
| Fuel Tank Capacity | 82 L | 80 L |
