2009 BMW 120 vs. 2006 BMW Z4
To start off, 2009 BMW 120 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 2,170 cc (6 cylinders), 2006 BMW Z4 is equipped with a bigger engine. In terms of performance, both vehicles can yield 168 horse power. So under normal driving conditions, the acceleration of both vehicles should be relatively similar. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW 120 weights approximately 200 kg more than 2006 BMW Z4.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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 120 (340 Nm @ 2000 RPM) has 130 more torque (in Nm) than 2006 BMW Z4. (210 Nm @ 3500 RPM). This means 2009 BMW 120 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW Z4. 2006 BMW Z4 has automatic transmission and 2009 BMW 120 has manual transmission. 2009 BMW 120 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 BMW Z4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 BMW 120 | 2006 BMW Z4 | |
| Make | BMW | BMW |
| Model | 120 | Z4 |
| Year Released | 2009 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 1995 cc | 2170 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 168 HP | 168 HP |
| Engine RPM | 4000 RPM | 6250 RPM |
| Torque | 340 Nm | 210 Nm |
| Torque RPM | 2000 RPM | 3500 RPM |
| Engine Bore Size | 84 mm | 80 mm |
| Engine Stroke Size | 90 mm | 72 mm |
| Engine Compression Ratio | 16.0:1 | 10.8:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 218 km/hour | 225 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1525 kg | 1325 kg |
| Vehicle Length | 4230 mm | 4100 mm |
| Vehicle Width | 1440 mm | 1790 mm |
| Vehicle Height | 1760 mm | 1310 mm |
| Wheelbase Size | 2670 mm | 2500 mm |
| Fuel Consumption Overall | 5.1 L/100km | 8.9 L/100km |
| Fuel Tank Capacity | 51 L | 55 L |
