2009 Audi A6 vs. 2007 Mercedes-Benz CLS
To start off, 2009 Audi A6 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Mercedes-Benz CLS. In addition, the cost of maintenance, including insurance, on 2007 Mercedes-Benz CLS 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 157 more horse power than 2009 Audi A6. (350 HP @ 6800 RPM) In normal driving conditions, 2007 Mercedes-Benz CLS should accelerate faster than 2009 Audi A6.
Because 2009 Audi A6 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, 2009 Audi A6 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 190 more torque (in Nm) than 2009 Audi A6. (441 Nm @ 3500 RPM). This means 2007 Mercedes-Benz CLS will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A6.
Compare all specifications:
| 2009 Audi A6 | 2007 Mercedes-Benz CLS | |
| Make | Audi | Mercedes-Benz |
| Model | A6 | CLS |
| Year Released | 2009 | 2007 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 6206 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 350 HP | 507 HP |
| Engine RPM | 6800 RPM | 6800 RPM |
| Torque | 441 Nm | 631 Nm |
| Torque RPM | 3500 RPM | 5200 RPM |
| Engine Bore Size | 84.5 mm | 102.2 mm |
| Engine Stroke Size | 92.8 mm | 94.6 mm |
| Fuel Type | Gasoline | Diesel |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4930 mm | 4910 mm |
| Vehicle Width | 2040 mm | 1880 mm |
| Vehicle Height | 1460 mm | 1400 mm |
| Wheelbase Size | 2850 mm | 2860 mm |
| Fuel Consumption | 10.4 L/100km | 11.8 L/100km |
| Fuel Consumption City | 14.9 L/100km | 18.1 L/100km |
| Fuel Consumption Overall | 13.2 L/100km | 14.7 L/100km |
| Fuel Tank Capacity | 80 L | 80 L |
