2005 BMW X5 vs. 2008 BMW Z4
To start off, 2008 BMW Z4 is newer by 3 year(s). Which means there will be less support and parts availability for 2005 BMW X5. In addition, the cost of maintenance, including insurance, on 2005 BMW X5 would be higher. At 2,926 cc (6 cylinders), 2005 BMW X5 is equipped with a bigger engine. In terms of performance, both vehicles can yield 215 horse power. So under normal driving conditions, the acceleration of both vehicles should be relatively similar. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW X5 weights approximately 810 kg more than 2008 BMW Z4.
Because 2005 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, 2005 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, 2005 BMW X5 (520 Nm @ 2000 RPM) has 270 more torque (in Nm) than 2008 BMW Z4. (250 Nm @ 2750 RPM). This means 2005 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW Z4. 2008 BMW Z4 has automatic transmission and 2005 BMW X5 has manual transmission. 2005 BMW X5 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 BMW Z4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 BMW X5 | 2008 BMW Z4 | |
| Make | BMW | BMW |
| Model | X5 | Z4 |
| Year Released | 2005 | 2008 |
| Body Type | SUV | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2926 cc | 2496 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 215 HP | 215 HP |
| Engine RPM | 4000 RPM | 6500 RPM |
| Torque | 520 Nm | 250 Nm |
| Torque RPM | 2000 RPM | 2750 RPM |
| Engine Bore Size | 84 mm | 82 mm |
| Engine Stroke Size | 90 mm | 78.8 mm |
| Engine Compression Ratio | 18.0:1 | 11.0:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 210 km/hour | 240 km/hour |
| Acceleration 0-100mph | 8.3 seconds | 7 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 2170 kg | 1360 kg |
| Vehicle Length | 4670 mm | 4100 mm |
| Vehicle Width | 1880 mm | 1790 mm |
| Vehicle Height | 1720 mm | 1310 mm |
| Wheelbase Size | 2830 mm | 2500 mm |
| Fuel Consumption Overall | 8.6 L/100km | 8.4 L/100km |
| Fuel Tank Capacity | 93 L | 55 L |
