2007 BMW X3 vs. 2011 BMW 525
To start off, 2011 BMW 525 is newer by 4 year(s). Which means there will be less support and parts availability for 2007 BMW X3. In addition, the cost of maintenance, including insurance, on 2007 BMW X3 would be higher. At 2,979 cc (6 cylinders), 2007 BMW X3 is equipped with a bigger engine. In terms of performance, 2007 BMW X3 (260 HP @ 6600 RPM) has 43 more horse power than 2011 BMW 525. (217 HP @ 4400 RPM). In normal driving conditions, 2007 BMW X3 should accelerate faster than 2011 BMW 525.
Because 2007 BMW X3 is four wheel drive (4WD), it will have significant more traction and grip than 2011 BMW 525. 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, 2011 BMW 525 (450 Nm @ 2500 RPM) has 145 more torque (in Nm) than 2007 BMW X3. (305 Nm @ 2750 RPM). This means 2011 BMW 525 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW X3.
Compare all specifications:
| 2007 BMW X3 | 2011 BMW 525 | |
| Make | BMW | BMW |
| Model | X3 | 525 |
| Year Released | 2007 | 2011 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2979 cc | 1995 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 260 HP | 217 HP |
| Engine RPM | 6600 RPM | 4400 RPM |
| Torque | 305 Nm | 450 Nm |
| Torque RPM | 2750 RPM | 2500 RPM |
| Engine Bore Size | 85.1 mm | 90 mm |
| Engine Stroke Size | 87.9 mm | 84 mm |
| Fuel Type | Gasoline | Diesel |
| Top Speed | 209 km/hour | 243 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | 8-speed shiftable automatic |
| Number of Doors | 5 doors | 4 doors |
