2007 BMW M6 vs. 2005 Mercedes-Benz CLS
To start off, 2007 BMW M6 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Mercedes-Benz CLS. In addition, the cost of maintenance, including insurance, on 2005 Mercedes-Benz CLS would be higher. At 5,438 cc (8 cylinders), 2005 Mercedes-Benz CLS is equipped with a bigger engine. In terms of performance, 2007 BMW M6 (500 HP @ 7750 RPM) has 31 more horse power than 2005 Mercedes-Benz CLS. (469 HP @ 6100 RPM). In normal driving conditions, 2007 BMW M6 should accelerate faster than 2005 Mercedes-Benz CLS. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW M6 weights approximately 85 kg more than 2005 Mercedes-Benz CLS. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2005 Mercedes-Benz CLS (700 Nm @ 2650 RPM) has 180 more torque (in Nm) than 2007 BMW M6. (520 Nm @ 6100 RPM). This means 2005 Mercedes-Benz CLS will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW M6. 2005 Mercedes-Benz CLS has automatic transmission and 2007 BMW M6 has manual transmission. 2007 BMW M6 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Mercedes-Benz CLS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW M6 | 2005 Mercedes-Benz CLS | |
| Make | BMW | Mercedes-Benz |
| Model | M6 | CLS |
| Year Released | 2007 | 2005 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4997 cc | 5438 cc |
| Engine Cylinders | 10 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 500 HP | 469 HP |
| Engine RPM | 7750 RPM | 6100 RPM |
| Torque | 520 Nm | 700 Nm |
| Torque RPM | 6100 RPM | 2650 RPM |
| Engine Bore Size | 92 mm | 97 mm |
| Engine Stroke Size | 75.2 mm | 92 mm |
| Engine Compression Ratio | 12.0:1 | 9.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 205 km/hour | 250 km/hour |
| Acceleration 0-100mph | 4.8 seconds | 4.7 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 2005 kg | 1920 kg |
| Vehicle Length | 4880 mm | 4920 mm |
| Vehicle Width | 1860 mm | 1880 mm |
| Vehicle Height | 1380 mm | 1400 mm |
| Wheelbase Size | 2790 mm | 3090 mm |
| Fuel Consumption Overall | 15.2 L/100km | 13.6 L/100km |
| Fuel Tank Capacity | 70 L | 80 L |
