2005 Infiniti M vs. 2003 Infiniti FX
To start off, 2005 Infiniti M is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Infiniti FX. In addition, the cost of maintenance, including insurance, on 2003 Infiniti FX would be higher. At 4,494 cc (8 cylinders), 2003 Infiniti FX is equipped with a bigger engine. In terms of performance, 2003 Infiniti FX (311 HP @ 6400 RPM) has 35 more horse power than 2005 Infiniti M. (276 HP @ 6200 RPM) In normal driving conditions, 2003 Infiniti FX should accelerate faster than 2005 Infiniti M. With that said, vehicle weight also plays an important factor in acceleration. 2003 Infiniti FX weights approximately 135 kg more than 2005 Infiniti M. 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, 2003 Infiniti FX (446 Nm @ 4000 RPM) has 80 more torque (in Nm) than 2005 Infiniti M. (366 Nm @ 4800 RPM). This means 2003 Infiniti FX will have an easier job in driving up hills or pulling heavy equipment than 2005 Infiniti M.
Compare all specifications:
| 2005 Infiniti M | 2003 Infiniti FX | |
| Make | Infiniti | Infiniti |
| Model | M | FX |
| Year Released | 2005 | 2003 |
| Body Type | Sedan | Crossover |
| Engine Position | Front | Front |
| Engine Size | 3498 cc | 4494 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 276 HP | 311 HP |
| Engine RPM | 6200 RPM | 6400 RPM |
| Torque | 366 Nm | 446 Nm |
| Torque RPM | 4800 RPM | 4000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1815 kg | 1950 kg |
| Vehicle Length | 4900 mm | 4810 mm |
| Vehicle Width | 1800 mm | 1930 mm |
| Vehicle Height | 1520 mm | 1660 mm |
| Wheelbase Size | 2880 mm | 2860 mm |
