2003 BMW 530 vs. 2007 BMW X3
To start off, 2007 BMW X3 is newer by 4 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. Both 2003 BMW 530 and 2007 BMW X3 are equipped with a 2,979 cc engine. In terms of performance, 2007 BMW X3 (260 HP @ 6600 RPM) has 33 more horse power than 2003 BMW 530. (227 HP @ 5900 RPM) In normal driving conditions, 2007 BMW X3 should accelerate faster than 2003 BMW 530.
Because 2007 BMW X3 is four wheel drive (4WD), it will have significant more traction and grip than 2003 BMW 530. In wet, icy, snow, or gravel driving conditions, 2007 BMW X3 will offer significantly more control. 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 X3 (305 Nm @ 2750 RPM) has 5 more torque (in Nm) than 2003 BMW 530. (300 Nm @ 3500 RPM). This means 2007 BMW X3 will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW 530. 2007 BMW X3 has automatic transmission and 2003 BMW 530 has manual transmission. 2003 BMW 530 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 BMW X3 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 BMW 530 | 2007 BMW X3 | |
| Make | BMW | BMW |
| Model | 530 | X3 |
| Year Released | 2003 | 2007 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 2979 cc | 2979 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 227 HP | 260 HP |
| Engine RPM | 5900 RPM | 6600 RPM |
| Torque | 300 Nm | 305 Nm |
| Torque RPM | 3500 RPM | 2750 RPM |
| Engine Bore Size | 84 mm | 85.1 mm |
| Engine Stroke Size | 89.6 mm | 87.9 mm |
| Engine Compression Ratio | 10.2:1 | 10.7:1 |
| Top Speed | 250 km/hour | 209 km/hour |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Doors | 4 doors | 5 doors |
