2006 BMW Z4 vs. 2007 Mercedes-Benz B
To start off, 2007 Mercedes-Benz B is newer by 1 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 3,246 cc (6 cylinders), 2006 BMW Z4 is equipped with a bigger engine. In terms of performance, 2006 BMW Z4 (338 HP @ 7900 RPM) has 200 more horse power than 2007 Mercedes-Benz B. (138 HP @ 4200 RPM). In normal driving conditions, 2006 BMW Z4 should accelerate faster than 2007 Mercedes-Benz B. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW Z4 weights approximately 111 kg more than 2007 Mercedes-Benz B. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2007 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 (365 Nm @ 4900 RPM) has 65 more torque (in Nm) than 2007 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 2007 Mercedes-Benz B. 2007 Mercedes-Benz B has automatic transmission and 2006 BMW Z4 has manual transmission. 2006 BMW Z4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Mercedes-Benz B will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 BMW Z4 | 2007 Mercedes-Benz B | |
| Make | BMW | Mercedes-Benz |
| Model | Z4 | B |
| Year Released | 2006 | 2007 |
| Body Type | Convertible | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3246 cc | 1991 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 338 HP | 138 HP |
| Engine RPM | 7900 RPM | 4200 RPM |
| Torque | 365 Nm | 300 Nm |
| Torque RPM | 4900 RPM | 1600 RPM |
| Engine Compression Ratio | 11.5:1 | 18.0:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 245 km/hour | 200 km/hour |
| Acceleration 0-100mph | 5 seconds | 7.6 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1485 kg | 1374 kg |
| Vehicle Length | 4120 mm | 4280 mm |
| Vehicle Width | 1790 mm | 1780 mm |
| Vehicle Height | 1310 mm | 1610 mm |
| Wheelbase Size | 2500 mm | 2780 mm |
| Fuel Consumption Overall | 12.1 L/100km | 5.8 L/100km |
| Fuel Tank Capacity | 55 L | 54 L |
