1999 Infiniti Q45 vs. 2006 Infiniti FX
To start off, 2006 Infiniti FX is newer by 7 year(s). Which means there will be less support and parts availability for 1999 Infiniti Q45. In addition, the cost of maintenance, including insurance, on 1999 Infiniti Q45 would be higher. At 4,490 cc (8 cylinders), 2006 Infiniti FX is equipped with a bigger engine. In terms of performance, 2006 Infiniti FX (320 HP @ 6400 RPM) has 55 more horse power than 1999 Infiniti Q45. (265 HP @ 5600 RPM) In normal driving conditions, 2006 Infiniti FX should accelerate faster than 1999 Infiniti Q45. With that said, vehicle weight also plays an important factor in acceleration. 2006 Infiniti FX weights approximately 196 kg more than 1999 Infiniti Q45. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 Infiniti FX is four wheel drive (4WD), it will have significant more traction and grip than 1999 Infiniti Q45. In wet, icy, snow, or gravel driving conditions, 2006 Infiniti FX 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 FX (454 Nm @ 4000 RPM) has 76 more torque (in Nm) than 1999 Infiniti Q45. (378 Nm @ 4000 RPM). This means 2006 Infiniti FX will have an easier job in driving up hills or pulling heavy equipment than 1999 Infiniti Q45.
Compare all specifications:
| 1999 Infiniti Q45 | 2006 Infiniti FX | |
| Make | Infiniti | Infiniti |
| Model | Q45 | FX |
| Year Released | 1999 | 2006 |
| Body Type | Sedan | Crossover |
| Engine Position | Front | Front |
| Engine Size | 4128 cc | 4490 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 265 HP | 320 HP |
| Engine RPM | 5600 RPM | 6400 RPM |
| Torque | 378 Nm | 454 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Bore Size | 93 mm | 93 mm |
| Engine Stroke Size | 76 mm | 82.7 mm |
| Engine Compression Ratio | 10.5:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1759 kg | 1955 kg |
| Vehicle Length | 5080 mm | 4810 mm |
| Vehicle Width | 1830 mm | 1930 mm |
| Vehicle Height | 1450 mm | 1660 mm |
| Wheelbase Size | 2840 mm | 2860 mm |
| Fuel Tank Capacity | 60 L | 90 L |
