2006 Audi A4 vs. 2003 Infiniti QX4
To start off, 2006 Audi A4 is newer by 3 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, 2006 Audi A4 (255 HP @ 6500 RPM) has 17 more horse power than 2003 Infiniti QX4. (238 HP @ 6000 RPM). In normal driving conditions, 2006 Audi A4 should accelerate faster than 2003 Infiniti QX4. With that said, vehicle weight also plays an important factor in acceleration. 2003 Infiniti QX4 weights approximately 80 kg more than 2006 Audi A4.
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 29 more torque (in Nm) than 2006 Audi A4. (330 Nm @ 3250 RPM). This means 2003 Infiniti QX4 will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi A4.
Compare all specifications:
| 2006 Audi A4 | 2003 Infiniti QX4 | |
| Make | Audi | Infiniti |
| Model | A4 | QX4 |
| Year Released | 2006 | 2003 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 3129 cc | 3498 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 255 HP | 238 HP |
| Engine RPM | 6500 RPM | 6000 RPM |
| Torque | 330 Nm | 359 Nm |
| Torque RPM | 3250 RPM | 3200 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | 4WD |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1880 kg | 1960 kg |
| Vehicle Length | 4590 mm | 4660 mm |
| Vehicle Width | 1780 mm | 1850 mm |
| Vehicle Height | 1430 mm | 1800 mm |
| Wheelbase Size | 2660 mm | 2710 mm |
