2003 BMW 520 vs. 2002 BMW Z3
To start off, 2003 BMW 520 is newer by 1 year(s). Which means there will be less support and parts availability for 2002 BMW Z3. In addition, the cost of maintenance, including insurance, on 2002 BMW Z3 would be higher. At 2,171 cc (6 cylinders), 2002 BMW Z3 is equipped with a bigger engine. In terms of performance, both vehicles can yield 167 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 520 weights approximately 325 kg more than 2002 BMW Z3.
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, both vehicles can yield 210 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.
Compare all specifications:
| 2003 BMW 520 | 2002 BMW Z3 | |
| Make | BMW | BMW |
| Model | 520 | Z3 |
| Year Released | 2003 | 2002 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2170 cc | 2171 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 167 HP | 167 HP |
| Engine RPM | 6100 RPM | 6100 RPM |
| Torque | 210 Nm | 210 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Engine Bore Size | 80 mm | 80 mm |
| Engine Stroke Size | 72 mm | 72 mm |
| Engine Compression Ratio | 10.7:1 | 10.8:1 |
| Top Speed | 223 km/hour | 224 km/hour |
| Acceleration 0-100mph | 9.5 seconds | 7.9 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 | 1345 kg |
| Vehicle Length | 4810 mm | 4060 mm |
| Vehicle Width | 1810 mm | 1750 mm |
| Vehicle Height | 1450 mm | 1300 mm |
| Wheelbase Size | 2890 mm | 2450 mm |
| Fuel Tank Capacity | 70 L | 51 L |
