2007 Mercedes-Benz SLK vs. 2009 BMW 523
To start off, 2009 BMW 523 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, 2007 Mercedes-Benz SLK (268 HP @ 5750 RPM) has 93 more horse power than 2009 BMW 523. (175 HP @ 5800 RPM). In normal driving conditions, 2007 Mercedes-Benz SLK should accelerate faster than 2009 BMW 523.
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 SLK (510 Nm @ 4000 RPM) has 280 more torque (in Nm) than 2009 BMW 523. (230 Nm @ 3500 RPM). This means 2007 Mercedes-Benz SLK will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 523.
Compare all specifications:
| 2007 Mercedes-Benz SLK | 2009 BMW 523 | |
| Make | Mercedes-Benz | BMW |
| Model | SLK | 523 |
| Year Released | 2007 | 2009 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3498 cc | 2497 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 3 valves | 4 valves |
| Horse Power | 268 HP | 175 HP |
| Engine RPM | 5750 RPM | 5800 RPM |
| Torque | 510 Nm | 230 Nm |
| Torque RPM | 4000 RPM | 3500 RPM |
| Engine Bore Size | 97 mm | 82.1 mm |
| Engine Stroke Size | 92 mm | 78.8 mm |
| Engine Compression Ratio | 11.0:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Acceleration 0-100mph | 4.9 seconds | 8.5 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Height | 1280 mm | 1470 mm |
| Wheelbase Size | 2440 mm | 2890 mm |
| Fuel Consumption Overall | 12 L/100km | 8.5 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
