2009 BMW 550 vs. 2005 Mercedes-Benz SL
To start off, 2009 BMW 550 is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Mercedes-Benz SL. In addition, the cost of maintenance, including insurance, on 2005 Mercedes-Benz SL would be higher. At 5,513 cc (12 cylinders), 2005 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2005 Mercedes-Benz SL (493 HP @ 4800 RPM) has 131 more horse power than 2009 BMW 550. (362 HP @ 6300 RPM) In normal driving conditions, 2005 Mercedes-Benz SL should accelerate faster than 2009 BMW 550. With that said, vehicle weight also plays an important factor in acceleration. 2005 Mercedes-Benz SL weights approximately 378 kg more than 2009 BMW 550. 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, 2005 Mercedes-Benz SL (800 Nm @ 1800 RPM) has 310 more torque (in Nm) than 2009 BMW 550. (490 Nm @ 3400 RPM). This means 2005 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 550.
Compare all specifications:
| 2009 BMW 550 | 2005 Mercedes-Benz SL | |
| Make | BMW | Mercedes-Benz |
| Model | 550 | SL |
| Year Released | 2009 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 4799 cc | 5513 cc |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 362 HP | 493 HP |
| Engine RPM | 6300 RPM | 4800 RPM |
| Torque | 490 Nm | 800 Nm |
| Torque RPM | 3400 RPM | 1800 RPM |
| Engine Bore Size | 93 mm | 82 mm |
| Engine Stroke Size | 88.3 mm | 87 mm |
| Engine Compression Ratio | 10.5:1 | 9.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 5.9 seconds | 4.7 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1662 kg | 2040 kg |
| Vehicle Length | 4850 mm | 4540 mm |
| Vehicle Width | 1470 mm | 1830 mm |
| Vehicle Height | 1850 mm | 1300 mm |
| Wheelbase Size | 2890 mm | 2570 mm |
| Fuel Consumption Overall | 11.1 L/100km | 14.7 L/100km |
| Fuel Tank Capacity | 70 L | 80 L |
