2009 Mercedes-Benz CLS vs. 2013 BMW 6 series
To start off, 2013 BMW 6 series is newer by 4 year(s). Which means there will be less support and parts availability for 2009 Mercedes-Benz CLS. In addition, the cost of maintenance, including insurance, on 2009 Mercedes-Benz CLS would be higher. At 5,461 cc (8 cylinders), 2009 Mercedes-Benz CLS is equipped with a bigger engine. In terms of performance, 2009 Mercedes-Benz CLS (382 HP @ 6000 RPM) has 64 more horse power than 2013 BMW 6 series. (318 HP @ 6000 RPM). In normal driving conditions, 2009 Mercedes-Benz CLS 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 590 kg more than 2009 Mercedes-Benz CLS.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front 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, 2009 Mercedes-Benz CLS (530 Nm @ 2800 RPM) has 80 more torque (in Nm) than 2013 BMW 6 series. (450 Nm @ 4500 RPM). This means 2009 Mercedes-Benz CLS will have an easier job in driving up hills or pulling heavy equipment than 2013 BMW 6 series.
Compare all specifications:
| 2009 Mercedes-Benz CLS | 2013 BMW 6 series | |
| Make | Mercedes-Benz | BMW |
| Model | CLS | 6 series |
| Year Released | 2009 | 2013 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 5461 cc | 2979 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 382 HP | 318 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 530 Nm | 450 Nm |
| Torque RPM | 2800 RPM | 4500 RPM |
| Engine Compression Ratio | 9.0:1 | 10.2 :1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | 8-speed shiftable automatic |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1225 kg | 1815 kg |
| Vehicle Length | 4910 mm | 4894 mm |
| Vehicle Width | 1880 mm | 1894 mm |
| Vehicle Height | 1400 mm | 1369 mm |
| Wheelbase Size | 2860 mm | 2855 mm |
| Fuel Tank Capacity | 80 L | 70 L |
