2007 Audi S8 vs. 2004 Infiniti QX4
To start off, 2007 Audi S8 is newer by 3 year(s). Which means there will be less support and parts availability for 2004 Infiniti QX4. In addition, the cost of maintenance, including insurance, on 2004 Infiniti QX4 would be higher. At 5,204 cc (10 cylinders), 2007 Audi S8 is equipped with a bigger engine. In terms of performance, 2007 Audi S8 (444 HP @ 7000 RPM) has 206 more horse power than 2004 Infiniti QX4. (238 HP @ 6000 RPM). In normal driving conditions, 2007 Audi S8 should accelerate faster than 2004 Infiniti QX4. With that said, vehicle weight also plays an important factor in acceleration. 2004 Infiniti QX4 weights approximately 20 kg more than 2007 Audi S8.
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, 2007 Audi S8 (540 Nm @ 3500 RPM) has 181 more torque (in Nm) than 2004 Infiniti QX4. (359 Nm @ 3200 RPM). This means 2007 Audi S8 will have an easier job in driving up hills or pulling heavy equipment than 2004 Infiniti QX4.
Compare all specifications:
| 2007 Audi S8 | 2004 Infiniti QX4 | |
| Make | Audi | Infiniti |
| Model | S8 | QX4 |
| Year Released | 2007 | 2004 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 5204 cc | 3498 cc |
| Engine Cylinders | 10 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 444 HP | 238 HP |
| Engine RPM | 7000 RPM | 6000 RPM |
| Torque | 540 Nm | 359 Nm |
| Torque RPM | 3500 RPM | 3200 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | AWD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1940 kg | 1960 kg |
| Vehicle Length | 5070 mm | 4660 mm |
| Vehicle Width | 1900 mm | 1850 mm |
| Vehicle Height | 1430 mm | 1800 mm |
| Wheelbase Size | 2950 mm | 2710 mm |
