2006 BMW X5 vs. 2007 BMW X3
To start off, 2007 BMW X3 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 4,398 cc (8 cylinders), 2006 BMW X5 is equipped with a bigger engine. In terms of performance, 2006 BMW X5 (316 HP @ 6100 RPM) has 48 more horse power than 2007 BMW X3. (268 HP @ 6600 RPM). In normal driving conditions, 2006 BMW X5 should accelerate faster than 2007 BMW X3. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW X5 weights approximately 380 kg more than 2007 BMW X3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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, 2006 BMW X5 (440 Nm @ 3700 RPM) has 125 more torque (in Nm) than 2007 BMW X3. (315 Nm @ 2750 RPM). This means 2006 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW X3.
Compare all specifications:
| 2006 BMW X5 | 2007 BMW X3 | |
| Make | BMW | BMW |
| Model | X5 | X3 |
| Year Released | 2006 | 2007 |
| Body Type | SUV | SUV |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 2996 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 316 HP | 268 HP |
| Engine RPM | 6100 RPM | 6600 RPM |
| Torque | 440 Nm | 315 Nm |
| Torque RPM | 3700 RPM | 2750 RPM |
| Engine Bore Size | 92 mm | 85 mm |
| Engine Stroke Size | 82.7 mm | 88 mm |
| Engine Compression Ratio | 10.0:1 | 10.7:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 210 km/hour | 210 km/hour |
| Acceleration 0-100mph | 7 seconds | 7.8 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 2195 kg | 1815 kg |
| Vehicle Length | 4670 mm | 4570 mm |
| Vehicle Width | 1880 mm | 1680 mm |
| Vehicle Height | 1710 mm | 1860 mm |
| Wheelbase Size | 2830 mm | 2800 mm |
| Fuel Consumption Overall | 13.3 L/100km | 10.3 L/100km |
| Fuel Tank Capacity | 93 L | 67 L |
