2009 Ford Explorer vs. 2003 Infiniti QX4
To start off, 2009 Ford Explorer 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 4,007 cc (6 cylinders), 2009 Ford Explorer is equipped with a bigger engine. In terms of performance, 2003 Infiniti QX4 (238 HP @ 6000 RPM) has 28 more horse power than 2009 Ford Explorer. (210 HP @ 5100 RPM) In normal driving conditions, 2003 Infiniti QX4 should accelerate faster than 2009 Ford Explorer. With that said, vehicle weight also plays an important factor in acceleration. 2003 Infiniti QX4 weights approximately 994 kg more than 2009 Ford Explorer. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 Infiniti QX4 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Ford Explorer. In wet, icy, snow, or gravel driving conditions, 2003 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, 2003 Infiniti QX4 (359 Nm @ 3200 RPM) has 15 more torque (in Nm) than 2009 Ford Explorer. (344 Nm @ 3700 RPM). This means 2003 Infiniti QX4 will have an easier job in driving up hills or pulling heavy equipment than 2009 Ford Explorer.
Compare all specifications:
| 2009 Ford Explorer | 2003 Infiniti QX4 | |
| Make | Ford | Infiniti |
| Model | Explorer | QX4 |
| Year Released | 2009 | 2003 |
| Body Type | SUV | SUV |
| Engine Position | Front | Front |
| Engine Size | 4007 cc | 3498 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 210 HP | 238 HP |
| Engine RPM | 5100 RPM | 6000 RPM |
| Torque | 344 Nm | 359 Nm |
| Torque RPM | 3700 RPM | 3200 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 7 seats | 4 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 966 kg | 1960 kg |
| Vehicle Length | 4920 mm | 4660 mm |
| Vehicle Width | 1880 mm | 1850 mm |
| Vehicle Height | 1830 mm | 1800 mm |
| Wheelbase Size | 2890 mm | 2710 mm |
