2003 BMW X3 vs. 2006 BMW 550
To start off, 2006 BMW 550 is newer by 3 year(s). Which means there will be less support and parts availability for 2003 BMW X3. In addition, the cost of maintenance, including insurance, on 2003 BMW X3 would be higher. At 2,995 cc (6 cylinders), 2003 BMW X3 is equipped with a bigger engine.
Because 2003 BMW X3 is four wheel drive (4WD), it will have significant more traction and grip than 2006 BMW 550. In wet, icy, snow, or gravel driving conditions, 2003 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.
Compare all specifications:
| 2003 BMW X3 | 2006 BMW 550 | |
| Make | BMW | BMW |
| Model | X3 | 550 |
| Year Released | 2003 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 2995 cc | 2497 cc |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 201 HP | 0 HP |
| Engine Compression Ratio | 17.0:1 | 10.5:1 |
| Top Speed | 215 km/hour | 235 km/hour |
| Acceleration 0-100mph | 8.2 seconds | 8.5 seconds |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Fuel Tank Capacity | 67 L | 70 L |
