2005 BMW 520 vs. 2003 BMW 645
To start off, 2005 BMW 520 is newer by 2 year(s). Which means there will be less support and parts availability for 2003 BMW 645. In addition, the cost of maintenance, including insurance, on 2003 BMW 645 would be higher. At 4,398 cc (8 cylinders), 2003 BMW 645 is equipped with a bigger engine. In terms of performance, 2003 BMW 645 (325 HP @ 6100 RPM) has 157 more horse power than 2005 BMW 520. (168 HP @ 6000 RPM) In normal driving conditions, 2003 BMW 645 should accelerate faster than 2005 BMW 520. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW 645 weights approximately 130 kg more than 2005 BMW 520. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2003 BMW 645 (450 Nm @ 3600 RPM) has 239 more torque (in Nm) than 2005 BMW 520. (211 Nm @ 3500 RPM). This means 2003 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW 520.
Compare all specifications:
2005 BMW 520 | 2003 BMW 645 | |
Make | BMW | BMW |
Model | 520 | 645 |
Year Released | 2005 | 2003 |
Body Type | Sedan | Coupe |
Engine Position | Front | Front |
Engine Size | 2171 cc | 4398 cc |
Engine Cylinders | 6 cylinders | 8 cylinders |
Engine Type | in-line | V |
Valves per Cylinder | 4 valves | 4 valves |
Horse Power | 168 HP | 325 HP |
Engine RPM | 6000 RPM | 6100 RPM |
Torque | 211 Nm | 450 Nm |
Torque RPM | 3500 RPM | 3600 RPM |
Engine Bore Size | 80 mm | 92 mm |
Engine Stroke Size | 72 mm | 82.7 mm |
Top Speed | 230 km/hour | 250 km/hour |
Acceleration 0-100mph | 9 seconds | 5.9 seconds |
Drive Type | Rear | Rear |
Transmission Type | Manual | Manual |
Number of Seats | 5 seats | 4 seats |
Number of Doors | 4 doors | 2 doors |
Vehicle Weight | 1560 kg | 1690 kg |
Vehicle Length | 4850 mm | 4830 mm |
Vehicle Width | 1850 mm | 1860 mm |
Vehicle Height | 1470 mm | 1380 mm |
Wheelbase Size | 2950 mm | 2890 mm |
Fuel Consumption Overall | 9.1 L/100km | 11.7 L/100km |
Fuel Tank Capacity | 70 L | 70 L |