2006 BMW 330 vs. 2007 BMW 525
To start off, 2007 BMW 525 is newer by 1 year(s). Which means there will be less support and parts availability for 2006 BMW 330. In addition, the cost of maintenance, including insurance, on 2006 BMW 330 would be higher. At 2,983 cc (6 cylinders), 2006 BMW 330 is equipped with a bigger engine. In terms of performance, 2006 BMW 330 (225 HP @ 5900 RPM) has 10 more horse power than 2007 BMW 525. (215 HP @ 6500 RPM). In normal driving conditions, 2006 BMW 330 should accelerate faster than 2007 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW 525 weights approximately 59 kg more than 2006 BMW 330.
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, 2006 BMW 330 (290 Nm @ 3500 RPM) has 40 more torque (in Nm) than 2007 BMW 525. (250 Nm @ 2750 RPM). This means 2006 BMW 330 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 525.
Compare all specifications:
| 2006 BMW 330 | 2007 BMW 525 | |
| Make | BMW | BMW |
| Model | 330 | 525 |
| Year Released | 2006 | 2007 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2983 cc | 2497 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 225 HP | 215 HP |
| Engine RPM | 5900 RPM | 6500 RPM |
| Torque | 290 Nm | 250 Nm |
| Torque RPM | 3500 RPM | 2750 RPM |
| Engine Bore Size | 84 mm | 78.8 mm |
| Engine Stroke Size | 89.6 mm | 82 mm |
| Engine Compression Ratio | 10.2:1 | 11.0:1 |
| Acceleration 0-100mph | 6.5 seconds | 7.8 seconds |
| Drive Type | Rear | Rear |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1506 kg | 1565 kg |
| Vehicle Length | 4490 mm | 4850 mm |
| Vehicle Width | 1760 mm | 1850 mm |
| Vehicle Height | 1380 mm | 1470 mm |
| Wheelbase Size | 2730 mm | 2890 mm |
| Fuel Consumption Highway | 8.4 L/100km | 7.8 L/100km |
| Fuel Consumption Overall | 10.2 L/100km | 8.7 L/100km |
| Fuel Tank Capacity | 63 L | 70 L |
