2006 BMW X5 vs. 2007 BMW 550
To start off, 2007 BMW 550 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. Both 2006 BMW X5 and 2007 BMW 550 are equipped with a 4,799 cc engine. In terms of performance, 2007 BMW 550 (362 HP @ 6300 RPM) has 7 more horse power than 2006 BMW X5. (355 HP @ 6200 RPM) In normal driving conditions, 2007 BMW 550 should accelerate faster than 2006 BMW X5. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW X5 weights approximately 542 kg more than 2007 BMW 550.
Because 2006 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 2007 BMW 550. 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, both vehicles can yield 490 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles.
Compare all specifications:
| 2006 BMW X5 | 2007 BMW 550 | |
| Make | BMW | BMW |
| Model | X5 | 550 |
| Year Released | 2006 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 4799 cc | 4799 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 355 HP | 362 HP |
| Engine RPM | 6200 RPM | 6300 RPM |
| Torque | 490 Nm | 490 Nm |
| Torque RPM | 3600 RPM | 3400 RPM |
| Engine Bore Size | 93 mm | 93.1 mm |
| Engine Stroke Size | 88.3 mm | 88.3 mm |
| Engine Compression Ratio | 11.0:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Acceleration 0-100mph | 6.1 seconds | 5.9 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 2202 kg | 1660 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 | 11.1 L/100km |
| Fuel Tank Capacity | 93 L | 70 L |
