2009 BMW 635 vs. 2012 Mercedes-Benz SLS
To start off, 2012 Mercedes-Benz SLS is newer by 3 year(s). Which means there will be less support and parts availability for 2009 BMW 635. In addition, the cost of maintenance, including insurance, on 2009 BMW 635 would be higher. At 6,200 cc (8 cylinders), 2012 Mercedes-Benz SLS is equipped with a bigger engine. In terms of performance, 2012 Mercedes-Benz SLS (563 HP @ 6800 RPM) has 281 more horse power than 2009 BMW 635. (282 HP @ 4400 RPM) In normal driving conditions, 2012 Mercedes-Benz SLS should accelerate faster than 2009 BMW 635. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW 635 weights approximately 64 kg more than 2012 Mercedes-Benz SLS.
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, 2012 Mercedes-Benz SLS (649 Nm @ 4750 RPM) has 68 more torque (in Nm) than 2009 BMW 635. (581 Nm @ 1750 RPM). This means 2012 Mercedes-Benz SLS will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 635.
Compare all specifications:
| 2009 BMW 635 | 2012 Mercedes-Benz SLS | |
| Make | BMW | Mercedes-Benz |
| Model | 635 | SLS |
| Year Released | 2009 | 2012 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 6200 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 282 HP | 563 HP |
| Engine RPM | 4400 RPM | 6800 RPM |
| Torque | 581 Nm | 649 Nm |
| Torque RPM | 1750 RPM | 4750 RPM |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 250 km/hour | 317 km/hour |
| Acceleration 0-100mph | 6.3 seconds | 3.8 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | 7-speed automated manual |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1725 kg | 1661 kg |
| Vehicle Length | 4830 mm | 4638 mm |
| Vehicle Width | 1860 mm | 1938 mm |
| Wheelbase Size | 2790 mm | 2680 mm |
| Fuel Tank Capacity | 70 L | 85 L |
