2008 BMW X5 vs. 2009 Mercedes-Benz B
To start off, 2009 Mercedes-Benz B is newer by 1 year(s). Which means there will be less support and parts availability for 2008 BMW X5. In addition, the cost of maintenance, including insurance, on 2008 BMW X5 would be higher. At 2,979 cc (6 cylinders), 2008 BMW X5 is equipped with a bigger engine. In terms of performance, 2008 BMW X5 (228 HP @ 5900 RPM) has 114 more horse power than 2009 Mercedes-Benz B. (114 HP @ 5500 RPM). In normal driving conditions, 2008 BMW X5 should accelerate faster than 2009 Mercedes-Benz B. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW X5 weights approximately 760 kg more than 2009 Mercedes-Benz B. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Mercedes-Benz B. In wet, icy, snow, or gravel driving conditions, 2008 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, 2008 BMW X5 (300 Nm @ 3500 RPM) has 145 more torque (in Nm) than 2009 Mercedes-Benz B. (155 Nm @ 3500 RPM). This means 2008 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2009 Mercedes-Benz B. 2008 BMW X5 has automatic transmission and 2009 Mercedes-Benz B has manual transmission. 2009 Mercedes-Benz B will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 BMW X5 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2008 BMW X5 | 2009 Mercedes-Benz B | |
| Make | BMW | Mercedes-Benz |
| Model | X5 | B |
| Year Released | 2008 | 2009 |
| Body Type | SUV | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2979 cc | 1699 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 228 HP | 114 HP |
| Engine RPM | 5900 RPM | 5500 RPM |
| Torque | 300 Nm | 155 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Engine Bore Size | 84.1 mm | 83 mm |
| Engine Stroke Size | 89.6 mm | 78.5 mm |
| Engine Compression Ratio | 10.2:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Acceleration 0-100mph | 8.5 seconds | 11.6 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 2070 kg | 1310 kg |
| Vehicle Length | 4670 mm | 4280 mm |
| Vehicle Width | 1880 mm | 1780 mm |
| Vehicle Height | 1720 mm | 1610 mm |
| Wheelbase Size | 2830 mm | 2780 mm |
| Fuel Consumption Overall | 12.7 L/100km | 6.8 L/100km |
| Fuel Tank Capacity | 93 L | 54 L |
