2007 BMW M3 vs. 2009 Mercedes-Benz SL
To start off, 2009 Mercedes-Benz SL is newer by 2 year(s). Which means there will be less support and parts availability for 2007 BMW M3. In addition, the cost of maintenance, including insurance, on 2007 BMW M3 would be higher. At 6,208 cc (8 cylinders), 2009 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2009 Mercedes-Benz SL (518 HP @ 6800 RPM) has 180 more horse power than 2007 BMW M3. (338 HP @ 7900 RPM) In normal driving conditions, 2009 Mercedes-Benz SL should accelerate faster than 2007 BMW M3. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW M3 weights approximately 415 kg more than 2009 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, 2009 Mercedes-Benz SL (630 Nm @ 5200 RPM) has 265 more torque (in Nm) than 2007 BMW M3. (365 Nm @ 4900 RPM). This means 2009 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW M3. 2009 Mercedes-Benz SL has automatic transmission and 2007 BMW M3 has manual transmission. 2007 BMW M3 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Mercedes-Benz SL will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW M3 | 2009 Mercedes-Benz SL | |
| Make | BMW | Mercedes-Benz |
| Model | M3 | SL |
| Year Released | 2007 | 2009 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3245 cc | 6208 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 338 HP | 518 HP |
| Engine RPM | 7900 RPM | 6800 RPM |
| Torque | 365 Nm | 630 Nm |
| Torque RPM | 4900 RPM | 5200 RPM |
| Engine Bore Size | 87 mm | 102.3 mm |
| Engine Stroke Size | 91 mm | 94.6 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1655 kg | 1240 kg |
| Vehicle Length | 4500 mm | 4540 mm |
| Vehicle Width | 1790 mm | 1480 mm |
| Vehicle Height | 1380 mm | 1600 mm |
| Wheelbase Size | 2740 mm | 2570 mm |
| Fuel Consumption Overall | 12.1 L/100km | 16.8 L/100km |
| Fuel Tank Capacity | 63 L | 80 L |
