2003 BMW 520 vs. 2005 BMW Z4
To start off, 2005 BMW Z4 is newer by 2 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 2,489 cc (6 cylinders), 2005 BMW Z4 is equipped with a bigger engine. In terms of performance, 2005 BMW Z4 (184 HP @ 6100 RPM) has 17 more horse power than 2003 BMW 520. (167 HP @ 5800 RPM) In normal driving conditions, 2005 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 165 kg more than 2005 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, 2005 BMW Z4 (237 Nm @ 3500 RPM) has 27 more torque (in Nm) than 2003 BMW 520. (210 Nm @ 3500 RPM). This means 2005 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW 520. 2005 BMW Z4 has automatic transmission and 2003 BMW 520 has manual transmission. 2003 BMW 520 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 BMW Z4 will be easier to drive especially in heavy traffic.
Compare all specifications:
2003 BMW 520 | 2005 BMW Z4 | |
Make | BMW | BMW |
Model | 520 | Z4 |
Year Released | 2003 | 2005 |
Body Type | Sedan | Convertible |
Engine Position | Front | Front |
Engine Size | 2171 cc | 2489 cc |
Engine Cylinders | 6 cylinders | 6 cylinders |
Engine Type | in-line | in-line |
Valves per Cylinder | 4 valves | 4 valves |
Horse Power | 167 HP | 184 HP |
Engine RPM | 5800 RPM | 6100 RPM |
Torque | 210 Nm | 237 Nm |
Torque RPM | 3500 RPM | 3500 RPM |
Engine Bore Size | 80 mm | 84 mm |
Engine Stroke Size | 72 mm | 75 mm |
Engine Compression Ratio | 10.8:1 | 10.5:1 |
Top Speed | 230 km/hour | 235 km/hour |
Acceleration 0-100mph | 9.3 seconds | 7 seconds |
Drive Type | Rear | Rear |
Transmission Type | Manual | Automatic |
Number of Seats | 5 seats | 2 seats |
Number of Doors | 4 doors | 2 doors |
Vehicle Weight | 1560 kg | 1395 kg |
Vehicle Length | 4850 mm | 4100 mm |
Vehicle Width | 1850 mm | 1790 mm |
Vehicle Height | 1470 mm | 1310 mm |
Wheelbase Size | 3000 mm | 2500 mm |
Fuel Consumption | 6.8 L/100km | 8.4 L/100km |
Fuel Consumption City | 13 L/100km | 11.8 L/100km |
Fuel Consumption Overall | 9 L/100km | 9 L/100km |
Fuel Tank Capacity | 70 L | 55 L |