2007 BMW Z4 vs. 2009 BMW X3
To start off, 2009 BMW X3 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 3,246 cc (6 cylinders), 2007 BMW Z4 is equipped with a bigger engine. In terms of performance, 2007 BMW Z4 (338 HP @ 7900 RPM) has 110 more horse power than 2009 BMW X3. (228 HP @ 5900 RPM). In normal driving conditions, 2007 BMW Z4 should accelerate faster than 2009 BMW X3. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW X3 weights approximately 351 kg more than 2007 BMW Z4.
Because 2009 BMW X3 is four wheel drive (4WD), it will have significant more traction and grip than 2007 BMW Z4. In wet, icy, snow, or gravel driving conditions, 2009 BMW X3 will offer significantly more control. 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, 2007 BMW Z4 (365 Nm @ 4900 RPM) has 65 more torque (in Nm) than 2009 BMW X3. (300 Nm @ 3500 RPM). This means 2007 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW X3.
Compare all specifications:
| 2007 BMW Z4 | 2009 BMW X3 | |
| Make | BMW | BMW |
| Model | Z4 | X3 |
| Year Released | 2007 | 2009 |
| Body Type | Convertible | SUV |
| Engine Position | Front | Front |
| Engine Size | 3246 cc | 2979 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 338 HP | 228 HP |
| Engine RPM | 7900 RPM | 5900 RPM |
| Torque | 365 Nm | 300 Nm |
| Torque RPM | 4900 RPM | 3500 RPM |
| Engine Compression Ratio | 11.5:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 250 km/hour | 210 km/hour |
| Acceleration 0-100mph | 5 seconds | 7.8 seconds |
| Drive Type | Rear | 4WD |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1485 kg | 1836 kg |
| Vehicle Length | 4120 mm | 4570 mm |
| Vehicle Width | 1310 mm | 1860 mm |
| Vehicle Height | 1790 mm | 1680 mm |
| Wheelbase Size | 2500 mm | 2800 mm |
| Fuel Consumption Overall | 12.1 L/100km | 11.4 L/100km |
| Fuel Tank Capacity | 70 L | 67 L |
