2003 BMW 530 vs. 2005 BMW 730
To start off, 2005 BMW 730 is newer by 2 year(s). Which means there will be less support and parts availability for 2003 BMW 530. In addition, the cost of maintenance, including insurance, on 2003 BMW 530 would be higher. At 2,993 cc (6 cylinders), 2005 BMW 730 is equipped with a bigger engine. In terms of performance, 2005 BMW 730 (228 HP @ 5900 RPM) has 13 more horse power than 2003 BMW 530. (215 HP @ 4000 RPM) In normal driving conditions, 2005 BMW 730 should accelerate faster than 2003 BMW 530. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 730 weights approximately 139 kg more than 2003 BMW 530. 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 530 (501 Nm @ 2000 RPM) has 201 more torque (in Nm) than 2005 BMW 730. (300 Nm @ 3500 RPM). This means 2003 BMW 530 will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW 730.
Compare all specifications:
| 2003 BMW 530 | 2005 BMW 730 | |
| Make | BMW | BMW |
| Model | 530 | 730 |
| Year Released | 2003 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2926 cc | 2993 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 215 HP | 228 HP |
| Engine RPM | 4000 RPM | 5900 RPM |
| Torque | 501 Nm | 300 Nm |
| Torque RPM | 2000 RPM | 3500 RPM |
| Engine Bore Size | 84 mm | 84 mm |
| Engine Stroke Size | 90 mm | 89.6 mm |
| Top Speed | 243 km/hour | 237 km/hour |
| Acceleration 0-100mph | 7.3 seconds | 8.3 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1685 kg | 1824 kg |
| Vehicle Length | 4850 mm | 5190 mm |
| Vehicle Width | 1850 mm | 1910 mm |
| Vehicle Height | 1470 mm | 1490 mm |
| Wheelbase Size | 2890 mm | 3140 mm |
| Fuel Consumption | 5.5 L/100km | 7.5 L/100km |
| Fuel Consumption City | 9.5 L/100km | 14.6 L/100km |
| Fuel Consumption Overall | 6.9 L/100km | 10.1 L/100km |
| Fuel Tank Capacity | 70 L | 88 L |
