2008 BMW 550 vs. 2006 BMW X5
To start off, 2008 BMW 550 is newer by 2 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 4,800 cc (8 cylinders), 2008 BMW 550 is equipped with a bigger engine. In terms of performance, 2008 BMW 550 (360 HP @ 6300 RPM) has 135 more horse power than 2006 BMW X5. (225 HP @ 5900 RPM). In normal driving conditions, 2008 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 105 kg more than 2008 BMW 550.
Because 2006 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 2008 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, 2008 BMW 550 (489 Nm @ 3400 RPM) has 199 more torque (in Nm) than 2006 BMW X5. (290 Nm @ 3500 RPM). This means 2008 BMW 550 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW X5.
Compare all specifications:
| 2008 BMW 550 | 2006 BMW X5 | |
| Make | BMW | BMW |
| Model | 550 | X5 |
| Year Released | 2008 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 4800 cc | 2981 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 360 HP | 225 HP |
| Engine RPM | 6300 RPM | 5900 RPM |
| Torque | 489 Nm | 290 Nm |
| Torque RPM | 3400 RPM | 3500 RPM |
| Drive Type | Rear | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1730 kg | 1835 kg |
| Vehicle Length | 4860 mm | 4670 mm |
| Vehicle Width | 1850 mm | 1880 mm |
| Vehicle Height | 1470 mm | 1770 mm |
| Wheelbase Size | 2890 mm | 2830 mm |
| Fuel Consumption | 10.7 L/100km | 11.2 L/100km |
| Fuel Consumption City | 15.7 L/100km | 15.7 L/100km |
| Fuel Consumption Overall | 10.8 L/100km | 13.8 L/100km |
| Fuel Tank Capacity | 70 L | 92 L |
