2009 Infiniti FX vs. 2003 Infiniti QX4
To start off, 2009 Infiniti FX is newer by 6 year(s). Which means there will be less support and parts availability for 2003 Infiniti QX4. In addition, the cost of maintenance, including insurance, on 2003 Infiniti QX4 would be higher. At 5,019 cc (8 cylinders), 2009 Infiniti FX is equipped with a bigger engine. In terms of performance, 2009 Infiniti FX (390 HP @ 6500 RPM) has 152 more horse power than 2003 Infiniti QX4. (238 HP @ 6000 RPM). In normal driving conditions, 2009 Infiniti FX should accelerate faster than 2003 Infiniti QX4.
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, 2009 Infiniti FX (501 Nm @ 4400 RPM) has 142 more torque (in Nm) than 2003 Infiniti QX4. (359 Nm @ 3200 RPM). This means 2009 Infiniti FX will have an easier job in driving up hills or pulling heavy equipment than 2003 Infiniti QX4.
Compare all specifications:
| 2009 Infiniti FX | 2003 Infiniti QX4 | |
| Make | Infiniti | Infiniti |
| Model | FX | QX4 |
| Year Released | 2009 | 2003 |
| Body Type | Crossover | SUV |
| Engine Position | Front | Front |
| Engine Size | 5019 cc | 3498 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 390 HP | 238 HP |
| Engine RPM | 6500 RPM | 6000 RPM |
| Torque | 501 Nm | 359 Nm |
| Torque RPM | 4400 RPM | 3200 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Length | 4870 mm | 4660 mm |
| Vehicle Width | 1930 mm | 1850 mm |
| Vehicle Height | 1690 mm | 1800 mm |
| Wheelbase Size | 2890 mm | 2710 mm |
