2005 Audi A4 vs. 2003 Infiniti QX4
To start off, 2005 Audi A4 is newer by 2 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 51 more horse power than 2005 Audi A4. (187 HP @ 5700 RPM) In normal driving conditions, 2003 Infiniti QX4 should accelerate faster than 2005 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2003 Infiniti QX4 weights approximately 565 kg more than 2005 Audi A4. 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 2005 Audi A4. 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 119 more torque (in Nm) than 2005 Audi A4. (240 Nm @ 1980 RPM). This means 2003 Infiniti QX4 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A4. 2003 Infiniti QX4 has automatic transmission and 2005 Audi A4 has manual transmission. 2005 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Infiniti QX4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Audi A4 | 2003 Infiniti QX4 | |
| Make | Audi | Infiniti |
| Model | A4 | QX4 |
| Year Released | 2005 | 2003 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 3498 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 187 HP | 238 HP |
| Engine RPM | 5700 RPM | 6000 RPM |
| Torque | 240 Nm | 359 Nm |
| Torque RPM | 1980 RPM | 3200 RPM |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1395 kg | 1960 kg |
| Vehicle Length | 4550 mm | 4660 mm |
| Vehicle Width | 1780 mm | 1850 mm |
| Vehicle Height | 1430 mm | 1800 mm |
| Wheelbase Size | 2760 mm | 2710 mm |
