1999 BMW X5 vs. 2006 BMW 525
To start off, 2006 BMW 525 is newer by 7 year(s). Which means there will be less support and parts availability for 1999 BMW X5. In addition, the cost of maintenance, including insurance, on 1999 BMW X5 would be higher. At 4,398 cc (8 cylinders), 1999 BMW X5 is equipped with a bigger engine. In terms of performance, 1999 BMW X5 (282 HP @ 5400 RPM) has 107 more horse power than 2006 BMW 525. (175 HP @ 4000 RPM). In normal driving conditions, 1999 BMW X5 should accelerate faster than 2006 BMW 525.
Because 1999 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 2006 BMW 525. In wet, icy, snow, or gravel driving conditions, 1999 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, 1999 BMW X5 (439 Nm @ 3600 RPM) has 39 more torque (in Nm) than 2006 BMW 525. (400 Nm @ 2000 RPM). This means 1999 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW 525.
Compare all specifications:
| 1999 BMW X5 | 2006 BMW 525 | |
| Make | BMW | BMW |
| Model | X5 | 525 |
| Year Released | 1999 | 2006 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 2497 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 282 HP | 175 HP |
| Engine RPM | 5400 RPM | 4000 RPM |
| Torque | 439 Nm | 400 Nm |
| Torque RPM | 3600 RPM | 2000 RPM |
| Engine Compression Ratio | 10.0:1 | 17.0:1 |
| Top Speed | 207 km/hour | 225 km/hour |
| Acceleration 0-100mph | 7.5 seconds | 8.1 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Length | 4670 mm | 4850 mm |
| Vehicle Width | 1880 mm | 1850 mm |
| Vehicle Height | 1710 mm | 1500 mm |
| Wheelbase Size | 2730 mm | 2730 mm |
| Fuel Consumption Overall | 13.9 L/100km | 6.8 L/100km |
| Fuel Tank Capacity | 93 L | 70 L |
