2005 Audi RS6 vs. 2007 Mercedes-Benz CLS
To start off, 2007 Mercedes-Benz CLS is newer by 2 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 6,206 cc (8 cylinders), 2007 Mercedes-Benz CLS is equipped with a bigger engine. In terms of performance, 2007 Mercedes-Benz CLS (507 HP @ 6800 RPM) has 63 more horse power than 2005 Audi RS6. (444 HP @ 5700 RPM) In normal driving conditions, 2007 Mercedes-Benz CLS should accelerate faster than 2005 Audi RS6.
Because 2005 Audi RS6 is four wheel drive (4WD), it will have significant more traction and grip than 2007 Mercedes-Benz CLS. 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, 2007 Mercedes-Benz CLS (631 Nm @ 5200 RPM) has 51 more torque (in Nm) than 2005 Audi RS6. (580 Nm @ 1950 RPM). This means 2007 Mercedes-Benz CLS will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi RS6.
Compare all specifications:
| 2005 Audi RS6 | 2007 Mercedes-Benz CLS | |
| Make | Audi | Mercedes-Benz |
| Model | RS6 | CLS |
| Year Released | 2005 | 2007 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 6206 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 444 HP | 507 HP |
| Engine RPM | 5700 RPM | 6800 RPM |
| Torque | 580 Nm | 631 Nm |
| Torque RPM | 1950 RPM | 5200 RPM |
| Engine Bore Size | 84.5 mm | 102.2 mm |
| Engine Stroke Size | 93 mm | 94.6 mm |
| Fuel Type | Gasoline - Premium | Diesel |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Length | 4840 mm | 4910 mm |
| Vehicle Width | 1860 mm | 1880 mm |
| Vehicle Height | 1400 mm | 1400 mm |
| Wheelbase Size | 2760 mm | 2860 mm |
| Fuel Consumption Overall | 14.6 L/100km | 14.7 L/100km |
| Fuel Tank Capacity | 82 L | 80 L |
