2004 BMW Z4 vs. 2009 BMW 125
To start off, 2009 BMW 125 is newer by 5 year(s). Which means there will be less support and parts availability for 2004 BMW Z4. In addition, the cost of maintenance, including insurance, on 2004 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 47 more horse power than 2004 BMW Z4. (168 HP @ 6250 RPM) In normal driving conditions, 2009 BMW 125 should accelerate faster than 2004 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW 125 weights approximately 1 kg more than 2004 BMW Z4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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 40 more torque (in Nm) than 2004 BMW Z4. (210 Nm @ 3500 RPM). This means 2009 BMW 125 will have an easier job in driving up hills or pulling heavy equipment than 2004 BMW Z4.
Compare all specifications:
| 2004 BMW Z4 | 2009 BMW 125 | |
| Make | BMW | BMW |
| Model | Z4 | 125 |
| Year Released | 2004 | 2009 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2171 cc | 2497 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 168 HP | 215 HP |
| Engine RPM | 6250 RPM | 6500 RPM |
| Torque | 210 Nm | 250 Nm |
| Torque RPM | 3500 RPM | 2750 RPM |
| Engine Compression Ratio | 10.8:1 | 10.2:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 220 km/hour | 245 km/hour |
| Acceleration 0-100mph | 7.7 seconds | 6.4 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Weight | 1325 kg | 1326 kg |
| Vehicle Length | 4100 mm | 4370 mm |
| Vehicle Width | 1790 mm | 1430 mm |
| Vehicle Height | 1310 mm | 1760 mm |
| Wheelbase Size | 2500 mm | 2670 mm |
| Fuel Consumption Overall | 8.9 L/100km | 5.1 L/100km |
| Fuel Tank Capacity | 55 L | 53 L |
