2007 Audi A4 vs. 2005 Infiniti QX56
To start off, 2007 Audi A4 is newer by 2 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 5,555 cc (8 cylinders), 2005 Infiniti QX56 is equipped with a bigger engine. In terms of performance, 2005 Infiniti QX56 (315 HP @ 6400 RPM) has 63 more horse power than 2007 Audi A4. (252 HP @ 5100 RPM) In normal driving conditions, 2005 Infiniti QX56 should accelerate faster than 2007 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Infiniti QX56 weights approximately 691 kg more than 2007 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Audi A4 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, 2007 Audi A4 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 Infiniti QX56 (529 Nm) has 199 more torque (in Nm) than 2007 Audi A4. (330 Nm). This means 2005 Infiniti QX56 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A4.
Compare all specifications:
| 2007 Audi A4 | 2005 Infiniti QX56 | |
| Make | Audi | Infiniti |
| Model | A4 | QX56 |
| Year Released | 2007 | 2005 |
| Body Type | Convertible | SUV |
| Engine Position | Front | Front |
| Engine Size | 3121 cc | 5555 cc |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 252 HP | 315 HP |
| Engine RPM | 5100 RPM | 6400 RPM |
| Torque | 330 Nm | 529 Nm |
| Engine Bore Size | 84.5 mm | 98 mm |
| Engine Stroke Size | 92.8 mm | 92 mm |
| Engine Compression Ratio | 12.5:1 | 9.8:1 |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 7 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1740 kg | 2431 kg |
| Vehicle Length | 4580 mm | 5260 mm |
| Vehicle Width | 1400 mm | 2010 mm |
| Vehicle Height | 1780 mm | 1960 mm |
| Wheelbase Size | 2660 mm | 3140 mm |
| Fuel Consumption Overall | 11.1 L/100km | 15.7 L/100km |
| Fuel Tank Capacity | 70 L | 106 L |
