2005 Infiniti Q45 vs. 2006 Infiniti QX4
To start off, 2006 Infiniti QX4 is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Infiniti Q45. In addition, the cost of maintenance, including insurance, on 2005 Infiniti Q45 would be higher. At 5,552 cc (8 cylinders), 2006 Infiniti QX4 is equipped with a bigger engine. In terms of performance, 2005 Infiniti Q45 (340 HP) has 25 more horse power than 2006 Infiniti QX4. (315 HP). In normal driving conditions, 2005 Infiniti Q45 should accelerate faster than 2006 Infiniti QX4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Infiniti Q45 weights approximately 517 kg more than 2006 Infiniti QX4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 Infiniti QX4 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Infiniti Q45. In wet, icy, snow, or gravel driving conditions, 2006 Infiniti QX4 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 QX4 (530 Nm) has 77 more torque (in Nm) than 2005 Infiniti Q45. (453 Nm). This means 2006 Infiniti QX4 will have an easier job in driving up hills or pulling heavy equipment than 2005 Infiniti Q45.
Compare all specifications:
| 2005 Infiniti Q45 | 2006 Infiniti QX4 | |
| Make | Infiniti | Infiniti |
| Model | Q45 | QX4 |
| Year Released | 2005 | 2006 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 4490 cc | 5552 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 340 HP | 315 HP |
| Torque | 453 Nm | 530 Nm |
| Engine Bore Size | 93 mm | 98 mm |
| Engine Stroke Size | 83 mm | 92 mm |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 7 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1837 kg | 1320 kg |
| Vehicle Length | 5080 mm | 5260 mm |
| Vehicle Width | 1850 mm | 2010 mm |
| Vehicle Height | 1500 mm | 1960 mm |
| Wheelbase Size | 2880 mm | 3140 mm |
| Fuel Consumption | 9.4 L/100km | 12.4 L/100km |
| Fuel Consumption City | 13.8 L/100km | 18.1 L/100km |
| Fuel Consumption Overall | 11.8 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 81 L | 60 L |
