2009 BMW X6 vs. 2003 Mercedes-Benz SL
To start off, 2009 BMW X6 is newer by 6 year(s). Which means there will be less support and parts availability for 2003 Mercedes-Benz SL. In addition, the cost of maintenance, including insurance, on 2003 Mercedes-Benz SL would be higher. At 5,439 cc (8 cylinders), 2003 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2003 Mercedes-Benz SL (493 HP @ 6100 RPM) has 261 more horse power than 2009 BMW X6. (232 HP @ 4000 RPM) In normal driving conditions, 2003 Mercedes-Benz SL should accelerate faster than 2009 BMW X6. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW X6 weights approximately 195 kg more than 2003 Mercedes-Benz SL.
Because 2009 BMW X6 is four wheel drive (4WD), it will have significant more traction and grip than 2003 Mercedes-Benz SL. In wet, icy, snow, or gravel driving conditions, 2009 BMW X6 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, 2003 Mercedes-Benz SL (700 Nm @ 2750 RPM) has 180 more torque (in Nm) than 2009 BMW X6. (520 Nm @ 2000 RPM). This means 2003 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW X6.
Compare all specifications:
| 2009 BMW X6 | 2003 Mercedes-Benz SL | |
| Make | BMW | Mercedes-Benz |
| Model | X6 | SL |
| Year Released | 2009 | 2003 |
| Body Type | SUV | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 5439 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 232 HP | 493 HP |
| Engine RPM | 4000 RPM | 6100 RPM |
| Torque | 520 Nm | 700 Nm |
| Torque RPM | 2000 RPM | 2750 RPM |
| Engine Compression Ratio | 17.0:1 | 9.0:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 210 km/hour | 250 km/hour |
| Acceleration 0-100mph | 8 seconds | 4.7 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 2150 kg | 1955 kg |
| Vehicle Length | 4880 mm | 4540 mm |
| Vehicle Width | 1990 mm | 1830 mm |
| Vehicle Height | 1700 mm | 1300 mm |
| Wheelbase Size | 2940 mm | 2570 mm |
| Fuel Consumption Overall | 8.2 L/100km | 13.5 L/100km |
| Fuel Tank Capacity | 85 L | 80 L |
