2006 BMW 645 vs. 2003 Mercedes-Benz SLK
To start off, 2006 BMW 645 is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Mercedes-Benz SLK. In addition, the cost of maintenance, including insurance, on 2003 Mercedes-Benz SLK would be higher. At 4,398 cc (8 cylinders), 2006 BMW 645 is equipped with a bigger engine. In terms of performance, 2006 BMW 645 (328 HP @ 6100 RPM) has 234 more horse power than 2003 Mercedes-Benz SLK. (94 HP @ 5750 RPM). In normal driving conditions, 2006 BMW 645 should accelerate faster than 2003 Mercedes-Benz SLK. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 645 weights approximately 375 kg more than 2003 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, 2006 BMW 645 (450 Nm) has 179 more torque (in Nm) than 2003 Mercedes-Benz SLK. (271 Nm). This means 2006 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2003 Mercedes-Benz SLK.
Compare all specifications:
| 2006 BMW 645 | 2003 Mercedes-Benz SLK | |
| Make | BMW | Mercedes-Benz |
| Model | 645 | SLK |
| Year Released | 2006 | 2003 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 2297 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 328 HP | 94 HP |
| Engine RPM | 6100 RPM | 5750 RPM |
| Torque | 450 Nm | 271 Nm |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1810 kg | 1435 kg |
| Vehicle Length | 4830 mm | 4020 mm |
| Vehicle Width | 1860 mm | 1720 mm |
| Vehicle Height | 1380 mm | 1290 mm |
| Wheelbase Size | 2790 mm | 2410 mm |
| Fuel Tank Capacity | 70 L | 88 L |
