2008 BMW M3 vs. 2005 Mercedes-Benz SLK
To start off, 2008 BMW M3 is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Mercedes-Benz SLK. In addition, the cost of maintenance, including insurance, on 2005 Mercedes-Benz SLK would be higher. At 3,246 cc (6 cylinders), 2008 BMW M3 is equipped with a bigger engine. In terms of performance, 2008 BMW M3 (338 HP @ 7900 RPM) has 178 more horse power than 2005 Mercedes-Benz SLK. (160 HP @ 5300 RPM). In normal driving conditions, 2008 BMW M3 should accelerate faster than 2005 Mercedes-Benz SLK. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW M3 weights approximately 290 kg more than 2005 Mercedes-Benz SLK. 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, 2008 BMW M3 (365 Nm @ 4900 RPM) has 135 more torque (in Nm) than 2005 Mercedes-Benz SLK. (230 Nm @ 2500 RPM). This means 2008 BMW M3 will have an easier job in driving up hills or pulling heavy equipment than 2005 Mercedes-Benz SLK.
Compare all specifications:
| 2008 BMW M3 | 2005 Mercedes-Benz SLK | |
| Make | BMW | Mercedes-Benz |
| Model | M3 | SLK |
| Year Released | 2008 | 2005 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3246 cc | 2032 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 338 HP | 160 HP |
| Engine RPM | 7900 RPM | 5300 RPM |
| Torque | 365 Nm | 230 Nm |
| Torque RPM | 4900 RPM | 2500 RPM |
| Engine Bore Size | 87.1 mm | 89.9 mm |
| Engine Stroke Size | 91 mm | 78.7 mm |
| Engine Compression Ratio | 11.5:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Acceleration 0-100mph | 5.5 seconds | 7.9 seconds |
| Drive Type | Rear | Rear |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1655 kg | 1365 kg |
| Vehicle Length | 4500 mm | 4090 mm |
| Vehicle Width | 1790 mm | 1780 mm |
| Vehicle Height | 1380 mm | 1300 mm |
| Wheelbase Size | 2740 mm | 2410 mm |
| Fuel Consumption Overall | 12.1 L/100km | 8.7 L/100km |
| Fuel Tank Capacity | 63 L | 70 L |
