2009 BMW X5 vs. 2008 BMW Z4
To start off, 2009 BMW X5 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 BMW Z4. In addition, the cost of maintenance, including insurance, on 2008 BMW Z4 would be higher. At 2,996 cc (6 cylinders), 2008 BMW Z4 is equipped with a bigger engine. In terms of performance, 2008 BMW Z4 (328 HP @ 7900 RPM) has 46 more horse power than 2009 BMW X5. (282 HP @ 4400 RPM) In normal driving conditions, 2008 BMW Z4 should accelerate faster than 2009 BMW X5. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW X5 weights approximately 840 kg more than 2008 BMW Z4.
Because 2009 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 2008 BMW Z4. In wet, icy, snow, or gravel driving conditions, 2009 BMW X5 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, 2009 BMW X5 (580 Nm @ 1750 RPM) has 265 more torque (in Nm) than 2008 BMW Z4. (315 Nm @ 2750 RPM). This means 2009 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW Z4.
Compare all specifications:
| 2009 BMW X5 | 2008 BMW Z4 | |
| Make | BMW | BMW |
| Model | X5 | Z4 |
| Year Released | 2009 | 2008 |
| Body Type | SUV | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 2996 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 282 HP | 328 HP |
| Engine RPM | 4400 RPM | 7900 RPM |
| Torque | 580 Nm | 315 Nm |
| Torque RPM | 1750 RPM | 2750 RPM |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 238 km/hour | 239 km/hour |
| Acceleration 0-100mph | 7 seconds | 6.2 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 2150 kg | 1310 kg |
| Vehicle Length | 4860 mm | 4100 mm |
| Vehicle Width | 1940 mm | 1790 mm |
| Vehicle Height | 1740 mm | 1310 mm |
| Wheelbase Size | 2940 mm | 2500 mm |
| Fuel Consumption Overall | 8.2 L/100km | 9.5 L/100km |
| Fuel Tank Capacity | 85 L | 55 L |
