2007 BMW X3 vs. 2008 Mercedes-Benz SL
To start off, 2008 Mercedes-Benz SL is newer by 1 year(s). Which means there will be less support and parts availability for 2007 BMW X3. In addition, the cost of maintenance, including insurance, on 2007 BMW X3 would be higher. At 5,439 cc (8 cylinders), 2008 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2008 Mercedes-Benz SL (511 HP @ 6100 RPM) has 363 more horse power than 2007 BMW X3. (148 HP @ 4000 RPM) In normal driving conditions, 2008 Mercedes-Benz SL should accelerate faster than 2007 BMW X3. With that said, vehicle weight also plays an important factor in acceleration. 2008 Mercedes-Benz SL weights approximately 220 kg more than 2007 BMW X3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 BMW X3 is four wheel drive (4WD), it will have significant more traction and grip than 2008 Mercedes-Benz SL. In wet, icy, snow, or gravel driving conditions, 2007 BMW X3 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, 2008 Mercedes-Benz SL (720 Nm @ 2600 RPM) has 390 more torque (in Nm) than 2007 BMW X3. (330 Nm @ 2000 RPM). This means 2008 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW X3. 2008 Mercedes-Benz SL has automatic transmission and 2007 BMW X3 has manual transmission. 2007 BMW X3 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 Mercedes-Benz SL will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW X3 | 2008 Mercedes-Benz SL | |
| Make | BMW | Mercedes-Benz |
| Model | X3 | SL |
| Year Released | 2007 | 2008 |
| Body Type | SUV | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1995 cc | 5439 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 148 HP | 511 HP |
| Engine RPM | 4000 RPM | 6100 RPM |
| Torque | 330 Nm | 720 Nm |
| Torque RPM | 2000 RPM | 2600 RPM |
| Engine Bore Size | 84 mm | 97 mm |
| Engine Stroke Size | 90 mm | 92 mm |
| Engine Compression Ratio | 17.0:1 | 9.0:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 215 km/hour | 250 km/hour |
| Acceleration 0-100mph | 9.1 seconds | 4.5 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1740 kg | 1960 kg |
| Vehicle Length | 4570 mm | 4540 mm |
| Vehicle Width | 1680 mm | 1830 mm |
| Vehicle Height | 1860 mm | 1300 mm |
| Wheelbase Size | 2800 mm | 2570 mm |
| Fuel Consumption Overall | 6.5 L/100km | 13.5 L/100km |
| Fuel Tank Capacity | 67 L | 80 L |
