2007 BMW 645 vs. 2010 Mercedes-Benz SL
To start off, 2010 Mercedes-Benz SL is newer by 3 year(s). Which means there will be less support and parts availability for 2007 BMW 645. In addition, the cost of maintenance, including insurance, on 2007 BMW 645 would be higher. At 5,980 cc (12 cylinders), 2010 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2010 Mercedes-Benz SL (661 HP @ 5400 RPM) has 333 more horse power than 2007 BMW 645. (328 HP @ 6100 RPM) In normal driving conditions, 2010 Mercedes-Benz SL should accelerate faster than 2007 BMW 645. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW 645 weights approximately 325 kg more than 2010 Mercedes-Benz SL.
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, 2010 Mercedes-Benz SL (1,000 Nm @ 2200 RPM) has 550 more torque (in Nm) than 2007 BMW 645. (450 Nm @ 3600 RPM). This means 2010 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 645. 2010 Mercedes-Benz SL has automatic transmission and 2007 BMW 645 has manual transmission. 2007 BMW 645 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2010 Mercedes-Benz SL will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW 645 | 2010 Mercedes-Benz SL | |
| Make | BMW | Mercedes-Benz |
| Model | 645 | SL |
| Year Released | 2007 | 2010 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 5980 cc |
| Engine Cylinders | 8 cylinders | 12 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 328 HP | 661 HP |
| Engine RPM | 6100 RPM | 5400 RPM |
| Torque | 450 Nm | 1000 Nm |
| Torque RPM | 3600 RPM | 2200 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 245 km/hour | 320 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1690 kg | 1365 kg |
| Vehicle Length | 4830 mm | 5210 mm |
| Vehicle Height | 1380 mm | 1830 mm |
| Wheelbase Size | 2790 mm | 2570 mm |
| Fuel Consumption Overall | 11.8 L/100km | 6.6 L/100km |
| Fuel Tank Capacity | 70 L | 80 L |
