2004 Infiniti FX vs. 2006 Infiniti QX56
To start off, 2006 Infiniti QX56 is newer by 2 year(s). Which means there will be less support and parts availability for 2004 Infiniti FX. In addition, the cost of maintenance, including insurance, on 2004 Infiniti FX would be higher. At 5,555 cc (8 cylinders), 2006 Infiniti QX56 is equipped with a bigger engine. In terms of performance, 2006 Infiniti QX56 (315 HP @ 4900 RPM) has 38 more horse power than 2004 Infiniti FX. (277 HP @ 6200 RPM) In normal driving conditions, 2006 Infiniti QX56 should accelerate faster than 2004 Infiniti FX. With that said, vehicle weight also plays an important factor in acceleration. 2004 Infiniti FX weights approximately 520 kg more than 2006 Infiniti QX56.
Because 2006 Infiniti QX56 is four wheel drive (4WD), it will have significant more traction and grip than 2004 Infiniti FX. In wet, icy, snow, or gravel driving conditions, 2006 Infiniti QX56 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, 2006 Infiniti QX56 (529 Nm @ 3600 RPM) has 163 more torque (in Nm) than 2004 Infiniti FX. (366 Nm @ 4800 RPM). This means 2006 Infiniti QX56 will have an easier job in driving up hills or pulling heavy equipment than 2004 Infiniti FX.
Compare all specifications:
| 2004 Infiniti FX | 2006 Infiniti QX56 | |
| Make | Infiniti | Infiniti |
| Model | FX | QX56 |
| Year Released | 2004 | 2006 |
| Body Type | Crossover | SUV |
| Engine Position | Front | Front |
| Engine Size | 3498 cc | 5555 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 277 HP | 315 HP |
| Engine RPM | 6200 RPM | 4900 RPM |
| Torque | 366 Nm | 529 Nm |
| Torque RPM | 4800 RPM | 3600 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1840 kg | 1320 kg |
| Vehicle Length | 4810 mm | 5260 mm |
| Vehicle Width | 1930 mm | 2010 mm |
| Vehicle Height | 1660 mm | 1980 mm |
| Wheelbase Size | 2860 mm | 3140 mm |
| Fuel Tank Capacity | 81 L | 106 L |
