2009 BMW X5 vs. 2010 Mercedes-Benz SL
To start off, 2010 Mercedes-Benz SL is newer by 1 year(s). Which means there will be less support and parts availability for 2009 BMW X5. In addition, the cost of maintenance, including insurance, on 2009 BMW X5 would be higher. At 4,799 cc (8 cylinders), 2009 BMW X5 is equipped with a bigger engine. In terms of performance, 2009 BMW X5 (350 HP @ 6300 RPM) has 39 more horse power than 2010 Mercedes-Benz SL. (311 HP @ 6500 RPM). In normal driving conditions, 2009 BMW X5 should accelerate faster than 2010 Mercedes-Benz SL.
Because 2009 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 2010 Mercedes-Benz SL. In wet, icy, snow, or gravel driving conditions, 2009 BMW X5 will offer significantly more control. 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 BMW X5 (475 Nm @ 3400 RPM) has 115 more torque (in Nm) than 2010 Mercedes-Benz SL. (360 Nm @ 4900 RPM). This means 2009 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2010 Mercedes-Benz SL.
Compare all specifications:
| 2009 BMW X5 | 2010 Mercedes-Benz SL | |
| Make | BMW | Mercedes-Benz |
| Model | X5 | SL |
| Year Released | 2009 | 2010 |
| Body Type | SUV | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4799 cc | 3498 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 350 HP | 311 HP |
| Engine RPM | 6300 RPM | 6500 RPM |
| Torque | 475 Nm | 360 Nm |
| Torque RPM | 3400 RPM | 4900 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | 7-speed shiftable automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Length | 4860 mm | 4582 mm |
| Vehicle Height | 1770 mm | 1298 mm |
| Wheelbase Size | 2940 mm | 2560 mm |
| Fuel Tank Capacity | 85 L | 80 L |
