2009 BMW 650 vs. 2010 Mercedes-Benz B
To start off, 2010 Mercedes-Benz B is newer by 1 year(s). Which means there will be less support and parts availability for 2009 BMW 650. In addition, the cost of maintenance, including insurance, on 2009 BMW 650 would be higher. At 4,799 cc (8 cylinders), 2009 BMW 650 is equipped with a bigger engine. In terms of performance, 2009 BMW 650 (361 HP @ 6300 RPM) has 253 more horse power than 2010 Mercedes-Benz B. (108 HP @ 4200 RPM). In normal driving conditions, 2009 BMW 650 should accelerate faster than 2010 Mercedes-Benz B. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW 650 weights approximately 85 kg more than 2010 Mercedes-Benz B. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 BMW 650 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2009 BMW 650. However, in wet, icy, snow, or gravel driving conditions, 2010 Mercedes-Benz B, being front wheel drive (FWD), will offer much better control with better grip. 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, 2009 BMW 650 (488 Nm @ 3400 RPM) has 238 more torque (in Nm) than 2010 Mercedes-Benz B. (250 Nm @ 1600 RPM). This means 2009 BMW 650 will have an easier job in driving up hills or pulling heavy equipment than 2010 Mercedes-Benz B.
Compare all specifications:
| 2009 BMW 650 | 2010 Mercedes-Benz B | |
| Make | BMW | Mercedes-Benz |
| Model | 650 | B |
| Year Released | 2009 | 2010 |
| Body Type | Convertible | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4799 cc | 1991 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 361 HP | 108 HP |
| Engine RPM | 6300 RPM | 4200 RPM |
| Torque | 488 Nm | 250 Nm |
| Torque RPM | 3400 RPM | 1600 RPM |
| Engine Bore Size | 93 mm | 83 mm |
| Engine Stroke Size | 88.3 mm | 92 mm |
| Engine Compression Ratio | 10.5:1 | 18.0:1 |
| Fuel Type | Gasoline | Diesel |
| Top Speed | 250 km/hour | 183 km/hour |
| Acceleration 0-100mph | 5.7 seconds | 11.3 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1525 kg | 1440 kg |
| Vehicle Length | 4830 mm | 4280 mm |
| Vehicle Width | 1380 mm | 1780 mm |
| Vehicle Height | 1860 mm | 1610 mm |
| Wheelbase Size | 2790 mm | 2780 mm |
| Fuel Consumption Overall | 9.3 L/100km | 5.6 L/100km |
| Fuel Tank Capacity | 70 L | 54 L |
