2009 Audi S6 vs. 2005 Infiniti M
To start off, 2009 Audi S6 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, both vehicles can yield 335 horse power. So under normal driving conditions, the acceleration of both vehicles should be relatively similar. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi S6 weights approximately 75 kg more than 2005 Infiniti M.
Because 2009 Audi S6 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 S6 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 33 more torque (in Nm) than 2009 Audi S6. (420 Nm @ 3400 RPM). This means 2005 Infiniti M will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi S6.
Compare all specifications:
| 2009 Audi S6 | 2005 Infiniti M | |
| Make | Audi | Infiniti |
| Model | S6 | M |
| Year Released | 2009 | 2005 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 4494 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 335 HP | 335 HP |
| Engine RPM | 7000 RPM | 6400 RPM |
| Torque | 420 Nm | 453 Nm |
| Torque RPM | 3400 RPM | 4000 RPM |
| Engine Bore Size | 84.6 mm | 93 mm |
| Engine Stroke Size | 93 mm | 82.7 mm |
| Fuel Type | Gasoline - Premium | 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 | 1815 kg | 1740 kg |
| Vehicle Length | 4840 mm | 5020 mm |
| Vehicle Width | 1860 mm | 1780 mm |
| Vehicle Height | 1450 mm | 1470 mm |
| Wheelbase Size | 2770 mm | 2810 mm |
| Fuel Tank Capacity | 82 L | 79 L |
