2007 Mercedes-Benz CLS vs. 2007 BMW 645
To start off, both 2007 Mercedes-Benz CLS and 2007 BMW 645 were released in the same year (2007). Therefore the support and the availability on parts for both vehicles should be relatively similar. 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 179 more horse power than 2007 BMW 645. (328 HP @ 6100 RPM). In normal driving conditions, 2007 Mercedes-Benz CLS should accelerate faster than 2007 BMW 645.
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, 2007 Mercedes-Benz CLS (631 Nm @ 5200 RPM) has 181 more torque (in Nm) than 2007 BMW 645. (450 Nm @ 3600 RPM). This means 2007 Mercedes-Benz CLS will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 645.
Compare all specifications:
| 2007 Mercedes-Benz CLS | 2007 BMW 645 | |
| Make | Mercedes-Benz | BMW |
| Model | CLS | 645 |
| Year Released | 2007 | 2007 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 6206 cc | 4398 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 507 HP | 328 HP |
| Engine RPM | 6800 RPM | 6100 RPM |
| Torque | 631 Nm | 450 Nm |
| Torque RPM | 5200 RPM | 3600 RPM |
| Engine Bore Size | 102.2 mm | 92 mm |
| Engine Stroke Size | 94.6 mm | 82.7 mm |
| Fuel Type | Diesel | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Length | 4910 mm | 4830 mm |
| Vehicle Width | 1880 mm | 1860 mm |
| Vehicle Height | 1400 mm | 1380 mm |
| Wheelbase Size | 2860 mm | 2790 mm |
| Fuel Consumption Overall | 14.7 L/100km | 13 L/100km |
| Fuel Tank Capacity | 80 L | 70 L |
