2003 BMW 520 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 520. In addition, the cost of maintenance, including insurance, on 2003 BMW 520 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 22 more horse power than 2003 BMW 520. (167 HP @ 6100 RPM) In normal driving conditions, 2007 BMW Z4 should accelerate faster than 2003 BMW 520. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW 520 weights approximately 410 kg more than 2007 BMW Z4.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 2007 BMW Z4 (245 Nm @ 3500 RPM) has 35 more torque (in Nm) than 2003 BMW 520. (210 Nm @ 3500 RPM). This means 2007 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW 520.
Compare all specifications:
2003 BMW 520 | 2007 BMW Z4 | |
Make | BMW | BMW |
Model | 520 | Z4 |
Year Released | 2003 | 2007 |
Body Type | Station Wagon | Convertible |
Engine Position | Front | Front |
Engine Size | 2170 cc | 2494 cc |
Engine Cylinders | 6 cylinders | 6 cylinders |
Engine Type | in-line | in-line |
Valves per Cylinder | 4 valves | 4 valves |
Horse Power | 167 HP | 189 HP |
Engine RPM | 6100 RPM | 6000 RPM |
Torque | 210 Nm | 245 Nm |
Torque RPM | 3500 RPM | 3500 RPM |
Engine Bore Size | 80 mm | 84 mm |
Engine Stroke Size | 72 mm | 75 mm |
Top Speed | 223 km/hour | 235 km/hour |
Acceleration 0-100mph | 9.5 seconds | 7 seconds |
Drive Type | Rear | Rear |
Transmission Type | Manual | Manual |
Number of Seats | 5 seats | 2 seats |
Number of Doors | 5 doors | 2 doors |
Vehicle Weight | 1670 kg | 1260 kg |
Vehicle Length | 4810 mm | 4100 mm |
Vehicle Width | 1810 mm | 1790 mm |
Vehicle Height | 1450 mm | 1310 mm |
Wheelbase Size | 2890 mm | 2500 mm |
Fuel Consumption Overall | 9.5 L/100km | 9.1 L/100km |
Fuel Tank Capacity | 70 L | 55 L |