2005 Audi A8 vs. 2007 Infiniti QX56
To start off, 2007 Infiniti QX56 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Audi A8. In addition, the cost of maintenance, including insurance, on 2005 Audi A8 would be higher. At 5,552 cc (8 cylinders), 2007 Infiniti QX56 is equipped with a bigger engine. In terms of performance, 2007 Infiniti QX56 (320 HP @ 4900 RPM) has 44 more horse power than 2005 Audi A8. (276 HP @ 3750 RPM) In normal driving conditions, 2007 Infiniti QX56 should accelerate faster than 2005 Audi A8.
Because 2005 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2007 Infiniti QX56. In wet, icy, snow, or gravel driving conditions, 2005 Audi A8 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, 2005 Audi A8 (650 Nm @ 1800 RPM) has 117 more torque (in Nm) than 2007 Infiniti QX56. (533 Nm @ 3600 RPM). This means 2005 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2007 Infiniti QX56.
Compare all specifications:
| 2005 Audi A8 | 2007 Infiniti QX56 | |
| Make | Audi | Infiniti |
| Model | A8 | QX56 |
| Year Released | 2005 | 2007 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 3934 cc | 5552 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 276 HP | 320 HP |
| Engine RPM | 3750 RPM | 4900 RPM |
| Torque | 650 Nm | 533 Nm |
| Torque RPM | 1800 RPM | 3600 RPM |
| Fuel Type | Diesel | Diesel |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 7 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Length | 5060 mm | 5260 mm |
| Vehicle Width | 1900 mm | 2010 mm |
| Vehicle Height | 1450 mm | 1960 mm |
| Wheelbase Size | 2950 mm | 3140 mm |
| Fuel Consumption Overall | 9.7 L/100km | 15.7 L/100km |
| Fuel Tank Capacity | 90 L | 106 L |
