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 5,460 cc (8 cylinders), 2007 Mercedes-Benz CLS is equipped with a bigger engine. In terms of performance, 2007 Mercedes-Benz CLS (382 HP @ 6000 RPM) has 40 more horse power than 2009 Audi A6. (342 HP @ 6500 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 (530 Nm @ 2800 RPM) has 287 more torque (in Nm) than 2009 Audi A6. (243 Nm @ 3250 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 | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3129 cc | 5460 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 342 HP | 382 HP |
| Engine RPM | 6500 RPM | 6000 RPM |
| Torque | 243 Nm | 530 Nm |
| Torque RPM | 3250 RPM | 2800 RPM |
| Engine Bore Size | 84.6 mm | 98 mm |
| Engine Stroke Size | 92.7 mm | 90.5 mm |
| Engine Compression Ratio | 12.5:1 | 10.7:1 |
| Fuel Type | Gasoline | 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 | 4920 mm | 4910 mm |
| Vehicle Width | 1470 mm | 1880 mm |
| Vehicle Height | 1860 mm | 1400 mm |
| Wheelbase Size | 2850 mm | 2860 mm |
| Fuel Consumption Overall | 15.5 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 70 L | 80 L |
