2006 Audi A8 vs. 2005 Infiniti QX56
To start off, 2006 Audi A8 is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Infiniti QX56. In addition, the cost of maintenance, including insurance, on 2005 Infiniti QX56 would be higher. At 5,997 cc, 2006 Audi A8 is equipped with a bigger engine. In terms of performance, 2006 Audi A8 (450 HP @ 6200 RPM) has 135 more horse power than 2005 Infiniti QX56. (315 HP @ 6400 RPM). In normal driving conditions, 2006 Audi A8 should accelerate faster than 2005 Infiniti QX56. With that said, vehicle weight also plays an important factor in acceleration. 2005 Infiniti QX56 weights approximately 286 kg more than 2006 Audi A8.
Because 2006 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Infiniti QX56. In wet, icy, snow, or gravel driving conditions, 2006 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, 2006 Audi A8 (580 Nm) has 51 more torque (in Nm) than 2005 Infiniti QX56. (529 Nm). This means 2006 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2005 Infiniti QX56.
Compare all specifications:
| 2006 Audi A8 | 2005 Infiniti QX56 | |
| Make | Audi | Infiniti |
| Model | A8 | QX56 |
| Year Released | 2006 | 2005 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 5997 cc | 5555 cc |
| Engine Type | W | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 450 HP | 315 HP |
| Engine RPM | 6200 RPM | 6400 RPM |
| Torque | 580 Nm | 529 Nm |
| Engine Bore Size | 84 mm | 98 mm |
| Engine Stroke Size | 90.2 mm | 92 mm |
| Engine Compression Ratio | 11.0:1 | 9.8:1 |
| Drive Type | 4WD | Rear |
| Number of Seats | 4 seats | 7 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 2145 kg | 2431 kg |
| Vehicle Length | 5200 mm | 5260 mm |
| Vehicle Width | 1900 mm | 2010 mm |
| Vehicle Height | 1460 mm | 1960 mm |
| Wheelbase Size | 3080 mm | 3140 mm |
| Fuel Consumption | 11.2 L/100km | 12.4 L/100km |
| Fuel Consumption City | 15.7 L/100km | 18.1 L/100km |
| Fuel Consumption Overall | 13.8 L/100km | 15.7 L/100km |
| Fuel Tank Capacity | 90 L | 106 L |
