2006 BMW X5 vs. 2005 Mercedes-Benz SL
To start off, 2006 BMW X5 is newer by 1 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 177 more horse power than 2006 BMW X5. (316 HP @ 6100 RPM) In normal driving conditions, 2005 Mercedes-Benz SL should accelerate faster than 2006 BMW X5. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW X5 weights approximately 155 kg more than 2005 Mercedes-Benz SL.
Because 2006 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Mercedes-Benz SL. In wet, icy, snow, or gravel driving conditions, 2006 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, 2005 Mercedes-Benz SL (800 Nm @ 1800 RPM) has 360 more torque (in Nm) than 2006 BMW X5. (440 Nm @ 3700 RPM). This means 2005 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW X5.
Compare all specifications:
| 2006 BMW X5 | 2005 Mercedes-Benz SL | |
| Make | BMW | Mercedes-Benz |
| Model | X5 | SL |
| Year Released | 2006 | 2005 |
| Body Type | SUV | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 5513 cc |
| Engine Cylinders | 8 cylinders | 12 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 316 HP | 493 HP |
| Engine RPM | 6100 RPM | 4800 RPM |
| Torque | 440 Nm | 800 Nm |
| Torque RPM | 3700 RPM | 1800 RPM |
| Engine Bore Size | 92 mm | 82 mm |
| Engine Stroke Size | 82.7 mm | 87 mm |
| Engine Compression Ratio | 10.0:1 | 9.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 210 km/hour | 250 km/hour |
| Acceleration 0-100mph | 7 seconds | 4.7 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 2195 kg | 2040 kg |
| Vehicle Length | 4670 mm | 4540 mm |
| Vehicle Width | 1880 mm | 1830 mm |
| Vehicle Height | 1710 mm | 1300 mm |
| Wheelbase Size | 2830 mm | 2570 mm |
| Fuel Consumption Overall | 13.3 L/100km | 14.7 L/100km |
| Fuel Tank Capacity | 93 L | 80 L |
