2007 Audi A6 vs. 2005 Infiniti M
To start off, 2007 Audi A6 is newer by 2 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, 2007 Audi A6 (350 HP @ 6800 RPM) has 15 more horse power than 2005 Infiniti M. (335 HP @ 6400 RPM). In normal driving conditions, 2007 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 46 kg more than 2007 Audi A6.
Because 2007 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, 2007 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 12 more torque (in Nm) than 2007 Audi A6. (441 Nm @ 3500 RPM). This means 2005 Infiniti M will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A6.
Compare all specifications:
| 2007 Audi A6 | 2005 Infiniti M | |
| Make | Audi | Infiniti |
| Model | A6 | M |
| Year Released | 2007 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 4494 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 350 HP | 335 HP |
| Engine RPM | 6800 RPM | 6400 RPM |
| Torque | 441 Nm | 453 Nm |
| Torque RPM | 3500 RPM | 4000 RPM |
| Engine Bore Size | 85 mm | 93 mm |
| Engine Stroke Size | 93 mm | 82.7 mm |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1745 kg | 1791 kg |
| Vehicle Length | 4920 mm | 4900 mm |
| Vehicle Width | 2020 mm | 1800 mm |
| Vehicle Height | 1460 mm | 1520 mm |
| Wheelbase Size | 2850 mm | 2910 mm |
| Fuel Tank Capacity | 80 L | 75 L |
