2003 BMW X3 vs. 2007 BMW Z4
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 X3. In addition, the cost of maintenance, including insurance, on 2003 BMW X3 would be higher. At 2,494 cc (6 cylinders), 2007 BMW Z4 is equipped with a bigger engine. In terms of performance, 2007 BMW Z4 (189 HP @ 6000 RPM) has 4 more horse power than 2003 BMW X3. (185 HP @ 6000 RPM) In normal driving conditions, 2007 BMW Z4 should accelerate faster than 2003 BMW X3. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW X3 weights approximately 580 kg more than 2007 BMW Z4.
Because 2003 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, 2003 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, both vehicles can yield 245 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles. 2003 BMW X3 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 X3 will be easier to drive especially in heavy traffic.
Compare all specifications:
2003 BMW X3 | 2007 BMW Z4 | |
Make | BMW | BMW |
Model | X3 | Z4 |
Year Released | 2003 | 2007 |
Body Type | SUV | Convertible |
Engine Position | Front | Front |
Engine Size | 2492 cc | 2494 cc |
Engine Cylinders | 6 cylinders | 6 cylinders |
Engine Type | in-line | in-line |
Valves per Cylinder | 4 valves | 4 valves |
Horse Power | 185 HP | 189 HP |
Engine RPM | 6000 RPM | 6000 RPM |
Torque | 245 Nm | 245 Nm |
Torque RPM | 3500 RPM | 3500 RPM |
Engine Bore Size | 84 mm | 84 mm |
Engine Stroke Size | 75 mm | 75 mm |
Drive Type | 4WD | Rear |
Transmission Type | Automatic | Manual |
Number of Seats | 5 seats | 2 seats |
Number of Doors | 5 doors | 2 doors |
Vehicle Weight | 1840 kg | 1260 kg |
Vehicle Length | 4570 mm | 4100 mm |
Vehicle Width | 1860 mm | 1790 mm |
Vehicle Height | 1680 mm | 1310 mm |
Wheelbase Size | 2800 mm | 2500 mm |
Fuel Tank Capacity | 67 L | 55 L |