2009 Audi Q7 vs. 2004 Infiniti Q45
To start off, 2009 Audi Q7 is newer by 5 year(s). Which means there will be less support and parts availability for 2004 Infiniti Q45. In addition, the cost of maintenance, including insurance, on 2004 Infiniti Q45 would be higher. At 4,490 cc (8 cylinders), 2004 Infiniti Q45 is equipped with a bigger engine. In terms of performance, 2004 Infiniti Q45 (340 HP) has 18 more horse power than 2009 Audi Q7. (322 HP) In normal driving conditions, 2004 Infiniti Q45 should accelerate faster than 2009 Audi Q7. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi Q7 weights approximately 616 kg more than 2004 Infiniti Q45.
Because 2009 Audi Q7 is four wheel drive (4WD), it will have significant more traction and grip than 2004 Infiniti Q45. In wet, icy, snow, or gravel driving conditions, 2009 Audi Q7 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 Audi Q7 (760 Nm) has 308 more torque (in Nm) than 2004 Infiniti Q45. (452 Nm). This means 2009 Audi Q7 will have an easier job in driving up hills or pulling heavy equipment than 2004 Infiniti Q45.
Compare all specifications:
| 2009 Audi Q7 | 2004 Infiniti Q45 | |
| Make | Audi | Infiniti |
| Model | Q7 | Q45 |
| Year Released | 2009 | 2004 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4132 cc | 4490 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 322 HP | 340 HP |
| Torque | 760 Nm | 452 Nm |
| Engine Bore Size | 83 mm | 93 mm |
| Engine Stroke Size | 95.5 mm | 83 mm |
| Engine Compression Ratio | 16.5:1 | 10.5:1 |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 2420 kg | 1804 kg |
| Vehicle Length | 5090 mm | 5080 mm |
| Vehicle Width | 1990 mm | 1850 mm |
| Vehicle Height | 1780 mm | 1500 mm |
| Wheelbase Size | 3010 mm | 2880 mm |
| Fuel Consumption Overall | 11.1 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 100 L | 81 L |
