2008 BMW Z4 vs. 2009 BMW X6
To start off, 2009 BMW X6 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 3,246 cc (6 cylinders), 2008 BMW Z4 is equipped with a bigger engine. In terms of performance, 2008 BMW Z4 (338 HP @ 7900 RPM) has 38 more horse power than 2009 BMW X6. (300 HP @ 5800 RPM). In normal driving conditions, 2008 BMW Z4 should accelerate faster than 2009 BMW X6. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW X6 weights approximately 660 kg more than 2008 BMW Z4.
Because 2009 BMW X6 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 X6 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 X6 (407 Nm @ 1400 RPM) has 42 more torque (in Nm) than 2008 BMW Z4. (365 Nm @ 4900 RPM). This means 2009 BMW X6 will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW Z4. 2009 BMW X6 has automatic transmission and 2008 BMW Z4 has manual transmission. 2008 BMW Z4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 BMW X6 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2008 BMW Z4 | 2009 BMW X6 | |
| Make | BMW | BMW |
| Model | Z4 | X6 |
| Year Released | 2008 | 2009 |
| Body Type | Convertible | SUV |
| Engine Position | Front | Front |
| Engine Size | 3246 cc | 2977 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 338 HP | 300 HP |
| Engine RPM | 7900 RPM | 5800 RPM |
| Torque | 365 Nm | 407 Nm |
| Torque RPM | 4900 RPM | 1400 RPM |
| Engine Bore Size | 91 mm | 84 mm |
| Engine Stroke Size | 87 mm | 89.6 mm |
| Engine Compression Ratio | 11.5:1 | 10.2:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 250 km/hour | 240 km/hour |
| Acceleration 0-100mph | 5 seconds | 6.7 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1485 kg | 2145 kg |
| Vehicle Length | 4870 mm | 4880 mm |
| Vehicle Height | 1480 mm | 1700 mm |
| Wheelbase Size | 2500 mm | 2940 mm |
| Fuel Consumption Overall | 12.1 L/100km | 10.9 L/100km |
| Fuel Tank Capacity | 70 L | 85 L |
