2009 Audi A6 vs. 2005 Infiniti Q45
To start off, 2009 Audi A6 is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Infiniti Q45. In addition, the cost of maintenance, including insurance, on 2005 Infiniti Q45 would be higher. At 4,490 cc (8 cylinders), 2005 Infiniti Q45 is equipped with a bigger engine. In terms of performance, 2009 Audi A6 (342 HP) has 2 more horse power than 2005 Infiniti Q45. (340 HP). In normal driving conditions, 2009 Audi A6 should accelerate faster than 2005 Infiniti Q45. With that said, vehicle weight also plays an important factor in acceleration. 2005 Infiniti Q45 weights approximately 297 kg more than 2009 Audi A6.
Because 2009 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Infiniti Q45. In wet, icy, snow, or gravel driving conditions, 2009 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, 2005 Infiniti Q45 (453 Nm) has 210 more torque (in Nm) than 2009 Audi A6. (243 Nm). This means 2005 Infiniti Q45 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A6.
Compare all specifications:
| 2009 Audi A6 | 2005 Infiniti Q45 | |
| Make | Audi | Infiniti |
| Model | A6 | Q45 |
| Year Released | 2009 | 2005 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3129 cc | 4490 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 342 HP | 340 HP |
| Torque | 243 Nm | 453 Nm |
| Engine Bore Size | 84.6 mm | 93 mm |
| Engine Stroke Size | 92.7 mm | 83 mm |
| Engine Compression Ratio | 12.5:1 | 10.5:1 |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1540 kg | 1837 kg |
| Vehicle Length | 4920 mm | 5080 mm |
| Vehicle Width | 1470 mm | 1850 mm |
| Vehicle Height | 1860 mm | 1500 mm |
| Wheelbase Size | 2850 mm | 2880 mm |
| Fuel Consumption Overall | 15.5 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 70 L | 81 L |
