2006 BMW X5 vs. 2007 BMW 650
To start off, 2007 BMW 650 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 4,797 cc (8 cylinders), 2007 BMW 650 is equipped with a bigger engine. In terms of performance, 2007 BMW 650 (362 HP @ 6300 RPM) has 137 more horse power than 2006 BMW X5. (225 HP @ 5900 RPM) In normal driving conditions, 2007 BMW 650 should accelerate faster than 2006 BMW X5. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW X5 weights approximately 195 kg more than 2007 BMW 650.
Because 2006 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 2007 BMW 650. 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, 2007 BMW 650 (490 Nm @ 3400 RPM) has 200 more torque (in Nm) than 2006 BMW X5. (290 Nm @ 3500 RPM). This means 2007 BMW 650 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW X5.
Compare all specifications:
| 2006 BMW X5 | 2007 BMW 650 | |
| Make | BMW | BMW |
| Model | X5 | 650 |
| Year Released | 2006 | 2007 |
| Body Type | SUV | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2981 cc | 4797 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 225 HP | 362 HP |
| Engine RPM | 5900 RPM | 6300 RPM |
| Torque | 290 Nm | 490 Nm |
| Torque RPM | 3500 RPM | 3400 RPM |
| Engine Compression Ratio | 10.2:1 | 10.5:1 |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1835 kg | 1640 kg |
| Vehicle Length | 4670 mm | 4830 mm |
| Vehicle Width | 1880 mm | 1380 mm |
| Vehicle Height | 1770 mm | 1860 mm |
| Wheelbase Size | 2830 mm | 2790 mm |
| Fuel Tank Capacity | 92 L | 70 L |
