2006 BMW Z4 vs. 2009 Mercedes-Benz B
To start off, 2009 Mercedes-Benz B is newer by 3 year(s). Which means there will be less support and parts availability for 2006 BMW Z4. In addition, the cost of maintenance, including insurance, on 2006 BMW Z4 would be higher. At 2,979 cc (6 cylinders), 2006 BMW Z4 is equipped with a bigger engine. In terms of performance, 2006 BMW Z4 (228 HP @ 5900 RPM) has 90 more horse power than 2009 Mercedes-Benz B. (138 HP @ 4200 RPM). In normal driving conditions, 2006 BMW Z4 should accelerate faster than 2009 Mercedes-Benz B. With that said, vehicle weight also plays an important factor in acceleration. 2009 Mercedes-Benz B weights approximately 70 kg more than 2006 BMW Z4.
Because 2006 BMW Z4 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 2006 BMW Z4. However, in wet, icy, snow, or gravel driving conditions, 2009 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, 2006 BMW Z4 (301 Nm @ 3500 RPM) has 1 more torque (in Nm) than 2009 Mercedes-Benz B. (300 Nm @ 1600 RPM). This means 2006 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2009 Mercedes-Benz B.
Compare all specifications:
| 2006 BMW Z4 | 2009 Mercedes-Benz B | |
| Make | BMW | Mercedes-Benz |
| Model | Z4 | B |
| Year Released | 2006 | 2009 |
| Body Type | Convertible | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2979 cc | 1989 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 228 HP | 138 HP |
| Engine RPM | 5900 RPM | 4200 RPM |
| Torque | 301 Nm | 300 Nm |
| Torque RPM | 3500 RPM | 1600 RPM |
| Engine Bore Size | 84 mm | 83 mm |
| Engine Stroke Size | 89.6 mm | 92 mm |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 250 km/hour | 200 km/hour |
| Acceleration 0-100mph | 5.9 seconds | 9.7 seconds |
| Drive Type | Rear | Front |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1365 kg | 1435 kg |
| Vehicle Length | 4100 mm | 4280 mm |
| Vehicle Width | 1790 mm | 1610 mm |
| Vehicle Height | 1310 mm | 1780 mm |
| Wheelbase Size | 2500 mm | 2780 mm |
| Fuel Consumption Overall | 9.1 L/100km | 5.6 L/100km |
| Fuel Tank Capacity | 55 L | 54 L |
