2009 BMW 125 vs. 2007 BMW Z4
To start off, 2009 BMW 125 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 BMW Z4. In addition, the cost of maintenance, including insurance, on 2007 BMW Z4 would be higher. At 2,497 cc (6 cylinders), 2009 BMW 125 is equipped with a bigger engine. In terms of performance, 2009 BMW 125 (215 HP @ 6500 RPM) has 26 more horse power than 2007 BMW Z4. (189 HP @ 6000 RPM). In normal driving conditions, 2009 BMW 125 should accelerate faster than 2007 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW Z4 weights approximately 9 kg more than 2009 BMW 125.
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 125 (250 Nm @ 2750 RPM) has 5 more torque (in Nm) than 2007 BMW Z4. (245 Nm @ 3500 RPM). This means 2009 BMW 125 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW Z4. 2007 BMW Z4 has automatic transmission and 2009 BMW 125 has manual transmission. 2009 BMW 125 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 BMW Z4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 BMW 125 | 2007 BMW Z4 | |
| Make | BMW | BMW |
| Model | 125 | Z4 |
| Year Released | 2009 | 2007 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 2492 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 215 HP | 189 HP |
| Engine RPM | 6500 RPM | 6000 RPM |
| Torque | 250 Nm | 245 Nm |
| Torque RPM | 2750 RPM | 3500 RPM |
| Engine Compression Ratio | 10.2:1 | 11.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 245 km/hour | 235 km/hour |
| Acceleration 0-100mph | 6.4 seconds | 7 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 3 doors | 2 doors |
| Vehicle Weight | 1326 kg | 1335 kg |
| Vehicle Length | 4370 mm | 4100 mm |
| Vehicle Width | 1430 mm | 1790 mm |
| Vehicle Height | 1760 mm | 1310 mm |
| Wheelbase Size | 2670 mm | 2500 mm |
| Fuel Consumption Overall | 5.1 L/100km | 9 L/100km |
| Fuel Tank Capacity | 53 L | 55 L |
