2003 Infiniti QX4 vs. 2009 Audi A4
To start off, 2009 Audi A4 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 3,498 cc (6 cylinders), 2003 Infiniti QX4 is equipped with a bigger engine. In terms of performance, 2003 Infiniti QX4 (238 HP @ 6000 RPM) has 21 more horse power than 2009 Audi A4. (217 HP @ 6300 RPM). In normal driving conditions, 2003 Infiniti QX4 should accelerate faster than 2009 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2003 Infiniti QX4 weights approximately 285 kg more than 2009 Audi A4. 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 QX4 (359 Nm @ 3200 RPM) has 59 more torque (in Nm) than 2009 Audi A4. (300 Nm @ 3200 RPM). This means 2003 Infiniti QX4 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A4.
Compare all specifications:
| 2003 Infiniti QX4 | 2009 Audi A4 | |
| Make | Infiniti | Audi |
| Model | QX4 | A4 |
| Year Released | 2003 | 2009 |
| Body Type | SUV | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3498 cc | 2976 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 238 HP | 217 HP |
| Engine RPM | 6000 RPM | 6300 RPM |
| Torque | 359 Nm | 300 Nm |
| Torque RPM | 3200 RPM | 3200 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1960 kg | 1675 kg |
| Vehicle Length | 4660 mm | 4580 mm |
| Vehicle Width | 1850 mm | 1780 mm |
| Vehicle Height | 1800 mm | 1400 mm |
| Wheelbase Size | 2710 mm | 2660 mm |
