2006 BMW X5 vs. 2011 Mercedes-Benz CLS
To start off, 2011 Mercedes-Benz CLS is newer by 5 year(s). Which means there will be less support and parts availability for 2006 BMW X5. In addition, the cost of maintenance, including insurance, on 2006 BMW X5 would be higher. At 4,700 cc (8 cylinders), 2011 Mercedes-Benz CLS is equipped with a bigger engine. In terms of performance, 2011 Mercedes-Benz CLS (402 HP @ 5000 RPM) has 177 more horse power than 2006 BMW X5. (225 HP @ 5900 RPM) In normal driving conditions, 2011 Mercedes-Benz CLS should accelerate faster than 2006 BMW X5. With that said, vehicle weight also plays an important factor in acceleration. 2011 Mercedes-Benz CLS weights approximately 101 kg more than 2006 BMW X5. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2011 Mercedes-Benz CLS (600 Nm @ 1800 RPM) has 310 more torque (in Nm) than 2006 BMW X5. (290 Nm @ 3500 RPM). This means 2011 Mercedes-Benz CLS will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW X5.
Compare all specifications:
| 2006 BMW X5 | 2011 Mercedes-Benz CLS | |
| Make | BMW | Mercedes-Benz |
| Model | X5 | CLS |
| Year Released | 2006 | 2011 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2981 cc | 4700 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 225 HP | 402 HP |
| Engine RPM | 5900 RPM | 5000 RPM |
| Torque | 290 Nm | 600 Nm |
| Torque RPM | 3500 RPM | 1800 RPM |
| Drive Type | 4WD | AWD |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1835 kg | 1936 kg |
| Vehicle Length | 4670 mm | 4940 mm |
| Vehicle Width | 1880 mm | 1882 mm |
| Vehicle Height | 1770 mm | 1417 mm |
| Wheelbase Size | 2830 mm | 2875 mm |
| Fuel Consumption Highway | 11.2 L/100km | 10.2 L/100km |
| Fuel Consumption City | 15.7 L/100km | 15.7 L/100km |
| Fuel Tank Capacity | 92 L | 80 L |
