2007 BMW X3 vs. 2006 Infiniti QX4
To start off, 2007 BMW X3 is newer by 1 year(s). Which means there will be less support and parts availability for 2006 Infiniti QX4. In addition, the cost of maintenance, including insurance, on 2006 Infiniti QX4 would be higher. At 5,552 cc (8 cylinders), 2006 Infiniti QX4 is equipped with a bigger engine. In terms of performance, 2006 Infiniti QX4 (315 HP @ 4900 RPM) has 55 more horse power than 2007 BMW X3. (260 HP @ 6600 RPM) In normal driving conditions, 2006 Infiniti QX4 should accelerate faster than 2007 BMW X3.
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 Infiniti QX4 (530 Nm @ 3600 RPM) has 225 more torque (in Nm) than 2007 BMW X3. (305 Nm @ 2750 RPM). This means 2006 Infiniti QX4 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW X3.
Compare all specifications:
| 2007 BMW X3 | 2006 Infiniti QX4 | |
| Make | BMW | Infiniti |
| Model | X3 | QX4 |
| Year Released | 2007 | 2006 |
| Body Type | SUV | SUV |
| Engine Position | Front | Front |
| Engine Size | 2979 cc | 5552 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 260 HP | 315 HP |
| Engine RPM | 6600 RPM | 4900 RPM |
| Torque | 305 Nm | 530 Nm |
| Torque RPM | 2750 RPM | 3600 RPM |
| Engine Bore Size | 85.1 mm | 98 mm |
| Engine Stroke Size | 87.9 mm | 92 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Doors | 5 doors | 4 doors |
