2007 BMW X3 vs. 2010 Mercedes-Benz B
To start off, 2010 Mercedes-Benz B is newer by 3 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 2,494 cc (6 cylinders), 2007 BMW X3 is equipped with a bigger engine. In terms of performance, 2010 Mercedes-Benz B (190 HP @ 5000 RPM) has 1 more horse power than 2007 BMW X3. (189 HP @ 6000 RPM) In normal driving conditions, 2010 Mercedes-Benz B should accelerate faster than 2007 BMW X3. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW X3 weights approximately 370 kg more than 2010 Mercedes-Benz B.
Because 2007 BMW X3 is four wheel drive (4WD), it will have significant more traction and grip than 2010 Mercedes-Benz B. 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, 2010 Mercedes-Benz B (280 Nm @ 1800 RPM) has 35 more torque (in Nm) than 2007 BMW X3. (245 Nm @ 3500 RPM). This means 2010 Mercedes-Benz B will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW X3.
Compare all specifications:
| 2007 BMW X3 | 2010 Mercedes-Benz B | |
| Make | BMW | Mercedes-Benz |
| Model | X3 | B |
| Year Released | 2007 | 2010 |
| Body Type | SUV | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 2034 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 189 HP | 190 HP |
| Engine RPM | 6000 RPM | 5000 RPM |
| Torque | 245 Nm | 280 Nm |
| Torque RPM | 3500 RPM | 1800 RPM |
| Engine Bore Size | 84.1 mm | 83 mm |
| Engine Stroke Size | 75 mm | 94 mm |
| Engine Compression Ratio | 10.5:1 | 9.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Acceleration 0-100mph | 9.6 seconds | 7.7 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1740 kg | 1370 kg |
| Vehicle Length | 4570 mm | 4280 mm |
| Vehicle Width | 1680 mm | 1610 mm |
| Vehicle Height | 1860 mm | 1780 mm |
| Wheelbase Size | 2800 mm | 2780 mm |
| Fuel Consumption Overall | 13 L/100km | 8.2 L/100km |
| Fuel Tank Capacity | 67 L | 54 L |
