2006 BMW X5 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 X5. In addition, the cost of maintenance, including insurance, on 2006 BMW X5 would be higher. At 4,799 cc (8 cylinders), 2006 BMW X5 is equipped with a bigger engine. In terms of performance, 2006 BMW X5 (355 HP @ 6200 RPM) has 140 more horse power than 2007 BMW 525. (215 HP @ 6500 RPM). In normal driving conditions, 2006 BMW X5 should accelerate faster than 2007 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW X5 weights approximately 707 kg more than 2007 BMW 525. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 BMW X5 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, 2006 BMW X5 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, 2006 BMW X5 (490 Nm @ 3600 RPM) has 240 more torque (in Nm) than 2007 BMW 525. (250 Nm @ 2900 RPM). This means 2006 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 525.
Compare all specifications:
| 2006 BMW X5 | 2007 BMW 525 | |
| Make | BMW | BMW |
| Model | X5 | 525 |
| Year Released | 2006 | 2007 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4799 cc | 2496 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 355 HP | 215 HP |
| Engine RPM | 6200 RPM | 6500 RPM |
| Torque | 490 Nm | 250 Nm |
| Torque RPM | 3600 RPM | 2900 RPM |
| Engine Bore Size | 93 mm | 82 mm |
| Engine Stroke Size | 88.3 mm | 78.8 mm |
| Engine Compression Ratio | 11.0:1 | 11.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 246 km/hour | 245 km/hour |
| Acceleration 0-100mph | 6.1 seconds | 7.9 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 2202 kg | 1495 kg |
| Vehicle Length | 4670 mm | 4850 mm |
| Vehicle Width | 1880 mm | 1470 mm |
| Vehicle Height | 1710 mm | 1850 mm |
| Wheelbase Size | 2830 mm | 2890 mm |
| Fuel Consumption Overall | 13.5 L/100km | 7 L/100km |
| Fuel Tank Capacity | 93 L | 70 L |
