2009 Audi A6 vs. 2005 Infiniti M
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 M. In addition, the cost of maintenance, including insurance, on 2005 Infiniti M would be higher. At 4,494 cc (8 cylinders), 2005 Infiniti M is equipped with a bigger engine. In terms of performance, 2009 Audi A6 (342 HP @ 6500 RPM) has 7 more horse power than 2005 Infiniti M. (335 HP @ 6400 RPM). In normal driving conditions, 2009 Audi A6 should accelerate faster than 2005 Infiniti M. With that said, vehicle weight also plays an important factor in acceleration. 2005 Infiniti M weights approximately 200 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 M. 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 M (453 Nm @ 4000 RPM) has 210 more torque (in Nm) than 2009 Audi A6. (243 Nm @ 3250 RPM). This means 2005 Infiniti M 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 M | |
| Make | Audi | Infiniti |
| Model | A6 | M |
| Year Released | 2009 | 2005 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3129 cc | 4494 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 342 HP | 335 HP |
| Engine RPM | 6500 RPM | 6400 RPM |
| Torque | 243 Nm | 453 Nm |
| Torque RPM | 3250 RPM | 4000 RPM |
| Engine Bore Size | 84.6 mm | 93 mm |
| Engine Stroke Size | 92.7 mm | 82.7 mm |
| Fuel Type | Gasoline | Gasoline |
| 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 | 1740 kg |
| Vehicle Length | 4920 mm | 5020 mm |
| Vehicle Width | 1470 mm | 1780 mm |
| Vehicle Height | 1860 mm | 1470 mm |
| Wheelbase Size | 2850 mm | 2810 mm |
| Fuel Tank Capacity | 70 L | 79 L |
