2007 Mercedes-Benz B vs. 2002 BMW Z3
To start off, 2007 Mercedes-Benz B is newer by 5 year(s). Which means there will be less support and parts availability for 2002 BMW Z3. In addition, the cost of maintenance, including insurance, on 2002 BMW Z3 would be higher. At 2,979 cc (6 cylinders), 2002 BMW Z3 is equipped with a bigger engine. In terms of performance, 2002 BMW Z3 (229 HP @ 5900 RPM) has 91 more horse power than 2007 Mercedes-Benz B. (138 HP @ 4200 RPM) In normal driving conditions, 2002 BMW Z3 should accelerate faster than 2007 Mercedes-Benz B. With that said, vehicle weight also plays an important factor in acceleration. 2002 BMW Z3 weights approximately 71 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 2002 BMW Z3 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 2002 BMW Z3. 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, both vehicles can yield 300 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles.
Compare all specifications:
| 2007 Mercedes-Benz B | 2002 BMW Z3 | |
| Make | Mercedes-Benz | BMW |
| Model | B | Z3 |
| Year Released | 2007 | 2002 |
| Body Type | Hatchback | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1991 cc | 2979 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 138 HP | 229 HP |
| Engine RPM | 4200 RPM | 5900 RPM |
| Torque | 300 Nm | 300 Nm |
| Torque RPM | 1600 RPM | 3500 RPM |
| Engine Bore Size | 83 mm | 84 mm |
| Engine Stroke Size | 92 mm | 89.6 mm |
| Engine Compression Ratio | 18.0:1 | 10.2:1 |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 200 km/hour | 242 km/hour |
| Acceleration 0-100mph | 7.6 seconds | 6.3 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1374 kg | 1445 kg |
| Vehicle Length | 4280 mm | 4030 mm |
| Vehicle Width | 1780 mm | 1750 mm |
| Vehicle Height | 1610 mm | 1310 mm |
| Wheelbase Size | 2780 mm | 2450 mm |
| Fuel Tank Capacity | 54 L | 51 L |
