2005 Audi S4 vs. 2003 Infiniti QX4
To start off, 2005 Audi S4 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 4,163 cc (8 cylinders), 2005 Audi S4 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (340 HP @ 6300 RPM) has 102 more horse power than 2003 Infiniti QX4. (238 HP @ 6000 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 2003 Infiniti QX4. With that said, vehicle weight also plays an important factor in acceleration. 2003 Infiniti QX4 weights approximately 225 kg more than 2005 Audi S4.
Let's talk about torque, 2005 Audi S4 (410 Nm) has 51 more torque (in Nm) than 2003 Infiniti QX4. (359 Nm). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2003 Infiniti QX4.
Compare all specifications:
| 2005 Audi S4 | 2003 Infiniti QX4 | |
| Make | Audi | Infiniti |
| Model | S4 | QX4 |
| Year Released | 2005 | 2003 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 3498 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 238 HP |
| Engine RPM | 6300 RPM | 6000 RPM |
| Torque | 410 Nm | 359 Nm |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1735 kg | 1960 kg |
| Vehicle Length | 4550 mm | 4660 mm |
| Vehicle Width | 1770 mm | 1850 mm |
| Vehicle Height | 1430 mm | 1800 mm |
| Wheelbase Size | 2660 mm | 2710 mm |
