2005 Audi A6 vs. 2009 Infiniti QX56
To start off, 2009 Infiniti QX56 is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Audi A6. In addition, the cost of maintenance, including insurance, on 2005 Audi A6 would be higher. At 5,552 cc (8 cylinders), 2009 Infiniti QX56 is equipped with a bigger engine. In terms of performance, 2009 Infiniti QX56 (320 HP @ 5200 RPM) has 73 more horse power than 2005 Audi A6. (247 HP @ 1800 RPM) In normal driving conditions, 2009 Infiniti QX56 should accelerate faster than 2005 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2009 Infiniti QX56 weights approximately 59 kg more than 2005 Audi A6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Infiniti QX56. In wet, icy, snow, or gravel driving conditions, 2005 Audi A6 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, 2009 Infiniti QX56 (533 Nm @ 3400 RPM) has 183 more torque (in Nm) than 2005 Audi A6. (350 Nm @ 1800 RPM). This means 2009 Infiniti QX56 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A6.
Compare all specifications:
| 2005 Audi A6 | 2009 Infiniti QX56 | |
| Make | Audi | Infiniti |
| Model | A6 | QX56 |
| Year Released | 2005 | 2009 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 2671 cc | 5552 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 247 HP | 320 HP |
| Engine RPM | 1800 RPM | 5200 RPM |
| Torque | 350 Nm | 533 Nm |
| Torque RPM | 1800 RPM | 3400 RPM |
| Engine Compression Ratio | 9.3:1 | 10.3:1 |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 7 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1660 kg | 1719 kg |
| Vehicle Length | 4800 mm | 5260 mm |
| Vehicle Width | 1820 mm | 2010 mm |
| Vehicle Height | 1460 mm | 1980 mm |
| Wheelbase Size | 2580 mm | 3140 mm |
| Fuel Consumption | 8.8 L/100km | 13.1 L/100km |
| Fuel Consumption City | 18.1 L/100km | 19.6 L/100km |
| Fuel Consumption Overall | 12.2 L/100km | 16.8 L/100km |
| Fuel Tank Capacity | 70 L | 106 L |
