2009 BMW 635 vs. 2007 Mercedes-Benz SLK
To start off, 2009 BMW 635 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Mercedes-Benz SLK. In addition, the cost of maintenance, including insurance, on 2007 Mercedes-Benz SLK would be higher. At 3,498 cc (6 cylinders), 2007 Mercedes-Benz SLK is equipped with a bigger engine. In terms of performance, 2009 BMW 635 (282 HP @ 4400 RPM) has 14 more horse power than 2007 Mercedes-Benz SLK. (268 HP @ 5750 RPM). In normal driving conditions, 2009 BMW 635 should accelerate faster than 2007 Mercedes-Benz SLK.
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, 2009 BMW 635 (580 Nm @ 1750 RPM) has 70 more torque (in Nm) than 2007 Mercedes-Benz SLK. (510 Nm @ 4000 RPM). This means 2009 BMW 635 will have an easier job in driving up hills or pulling heavy equipment than 2007 Mercedes-Benz SLK.
Compare all specifications:
| 2009 BMW 635 | 2007 Mercedes-Benz SLK | |
| Make | BMW | Mercedes-Benz |
| Model | 635 | SLK |
| Year Released | 2009 | 2007 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 3498 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 282 HP | 268 HP |
| Engine RPM | 4400 RPM | 5750 RPM |
| Torque | 580 Nm | 510 Nm |
| Torque RPM | 1750 RPM | 4000 RPM |
| Engine Bore Size | 84 mm | 97 mm |
| Engine Stroke Size | 90 mm | 92 mm |
| Engine Compression Ratio | 17.0:1 | 11.0:1 |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 6.6 seconds | 4.9 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Height | 1380 mm | 1280 mm |
| Wheelbase Size | 2790 mm | 2440 mm |
| Fuel Consumption Overall | 7.4 L/100km | 12 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
