2006 Mercedes-Benz CLS vs. 2011 BMW X5
To start off, 2011 BMW X5 is newer by 5 year(s). Which means there will be less support and parts availability for 2006 Mercedes-Benz CLS. In addition, the cost of maintenance, including insurance, on 2006 Mercedes-Benz CLS would be higher. At 4,965 cc (8 cylinders), 2006 Mercedes-Benz CLS is equipped with a bigger engine. In terms of performance, 2011 BMW X5 (304 HP @ 440 RPM) has 2 more horse power than 2006 Mercedes-Benz CLS. (302 HP @ 5600 RPM) In normal driving conditions, 2011 BMW X5 should accelerate faster than 2006 Mercedes-Benz CLS. With that said, vehicle weight also plays an important factor in acceleration. 2011 BMW X5 weights approximately 375 kg more than 2006 Mercedes-Benz CLS. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2011 BMW X5 is all wheel drive (AWD), it will have significant more traction and grip than 2006 Mercedes-Benz CLS. In wet, icy, snow, or gravel driving conditions, 2011 BMW X5 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, 2011 BMW X5 (600 Nm @ 1500 RPM) has 140 more torque (in Nm) than 2006 Mercedes-Benz CLS. (460 Nm @ 2000 RPM). This means 2011 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2006 Mercedes-Benz CLS.
Compare all specifications:
| 2006 Mercedes-Benz CLS | 2011 BMW X5 | |
| Make | Mercedes-Benz | BMW |
| Model | CLS | X5 |
| Year Released | 2006 | 2011 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 4965 cc | 2993 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 3 valves | 4 valves |
| Horse Power | 302 HP | 304 HP |
| Engine RPM | 5600 RPM | 440 RPM |
| Torque | 460 Nm | 600 Nm |
| Torque RPM | 2000 RPM | 1500 RPM |
| Engine Bore Size | 97 mm | 90 mm |
| Engine Stroke Size | 84 mm | 84 mm |
| Fuel Type | Gasoline | Diesel |
| Top Speed | 250 km/hour | 237 km/hour |
| Acceleration 0-100mph | 6.1 seconds | 6.6 seconds |
| Drive Type | Rear | AWD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1810 kg | 2185 kg |
| Vehicle Length | 4920 mm | 4857 mm |
| Vehicle Width | 1860 mm | 1933 mm |
| Vehicle Height | 1400 mm | 1776 mm |
| Wheelbase Size | 2860 mm | 2934 mm |
| Fuel Consumption Overall | 11.3 L/100km | 7.5 L/100km |
| Fuel Tank Capacity | 89 L | 85 L |
