2007 BMW 525 vs. 2003 BMW 330
To start off, 2007 BMW 525 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 BMW 330. In addition, the cost of maintenance, including insurance, on 2003 BMW 330 would be higher. At 2,996 cc (6 cylinders), 2003 BMW 330 is equipped with a bigger engine. In terms of performance, 2007 BMW 525 (215 HP @ 6500 RPM) has 31 more horse power than 2003 BMW 330. (184 HP @ 4000 RPM). In normal driving conditions, 2007 BMW 525 should accelerate faster than 2003 BMW 330. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW 330 weights approximately 305 kg more than 2007 BMW 525.
Because 2003 BMW 330 is four wheel drive (4WD), it will have significant more traction and grip than 2007 BMW 525. In wet, icy, snow, or gravel driving conditions, 2003 BMW 330 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, 2003 BMW 330 (410 Nm @ 1500 RPM) has 160 more torque (in Nm) than 2007 BMW 525. (250 Nm @ 2900 RPM). This means 2003 BMW 330 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 525.
Compare all specifications:
| 2007 BMW 525 | 2003 BMW 330 | |
| Make | BMW | BMW |
| Model | 525 | 330 |
| Year Released | 2007 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 2996 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 215 HP | 184 HP |
| Engine RPM | 6500 RPM | 4000 RPM |
| Torque | 250 Nm | 410 Nm |
| Torque RPM | 2900 RPM | 1500 RPM |
| Engine Bore Size | 82 mm | 84 mm |
| Engine Stroke Size | 78.8 mm | 90 mm |
| Engine Compression Ratio | 11.0:1 | 17.0:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1500 kg | 1805 kg |
| Vehicle Length | 4850 mm | 4480 mm |
| Vehicle Width | 1470 mm | 1750 mm |
| Vehicle Height | 1850 mm | 1420 mm |
| Wheelbase Size | 2890 mm | 2840 mm |
| Fuel Tank Capacity | 70 L | 63 L |
