2007 BMW Z4 vs. 2003 BMW X5
To start off, 2007 BMW Z4 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 BMW X5. In addition, the cost of maintenance, including insurance, on 2003 BMW X5 would be higher. At 4,398 cc (8 cylinders), 2003 BMW X5 is equipped with a bigger engine. In terms of performance, both vehicles can yield 338 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. 2003 BMW X5 weights approximately 710 kg more than 2007 BMW Z4.
Because 2003 BMW X5 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, 2003 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, 2003 BMW X5 (400 Nm @ 3700 RPM) has 35 more torque (in Nm) than 2007 BMW Z4. (365 Nm @ 4900 RPM). This means 2003 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW Z4. 2003 BMW X5 has automatic transmission and 2007 BMW Z4 has manual transmission. 2007 BMW Z4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 BMW X5 will be easier to drive especially in heavy traffic.
Compare all specifications:
2007 BMW Z4 | 2003 BMW X5 | |
Make | BMW | BMW |
Model | Z4 | X5 |
Year Released | 2007 | 2003 |
Body Type | Convertible | SUV |
Engine Position | Front | Front |
Engine Size | 3246 cc | 4398 cc |
Engine Cylinders | 6 cylinders | 8 cylinders |
Engine Type | in-line | V |
Valves per Cylinder | 4 valves | 4 valves |
Horse Power | 338 HP | 338 HP |
Engine RPM | 7900 RPM | 6100 RPM |
Torque | 365 Nm | 400 Nm |
Torque RPM | 4900 RPM | 3700 RPM |
Engine Bore Size | 87 mm | 92 mm |
Engine Stroke Size | 91 mm | 82.7 mm |
Engine Compression Ratio | 11.5:1 | 10.0:1 |
Top Speed | 250 km/hour | 240 km/hour |
Acceleration 0-100mph | 5 seconds | 7 seconds |
Drive Type | Rear | 4WD |
Transmission Type | Manual | Automatic |
Number of Seats | 2 seats | 5 seats |
Number of Doors | 2 doors | 5 doors |
Vehicle Weight | 1485 kg | 2195 kg |
Vehicle Length | 4120 mm | 4670 mm |
Vehicle Width | 1790 mm | 1880 mm |
Vehicle Height | 1310 mm | 1720 mm |
Wheelbase Size | 2500 mm | 2730 mm |
Fuel Consumption Overall | 12.1 L/100km | 13.3 L/100km |
Fuel Tank Capacity | 55 L | 93 L |