2007 Audi S4 vs. 2012 Infiniti M
To start off, 2012 Infiniti M is newer by 5 year(s). Which means there will be less support and parts availability for 2007 Audi S4. In addition, the cost of maintenance, including insurance, on 2007 Audi S4 would be higher. At 5,600 cc (8 cylinders), 2012 Infiniti M is equipped with a bigger engine. In terms of performance, 2012 Infiniti M (420 HP @ 6000 RPM) has 80 more horse power than 2007 Audi S4. (340 HP @ 6800 RPM) In normal driving conditions, 2012 Infiniti M should accelerate faster than 2007 Audi S4. With that said, vehicle weight also plays an important factor in acceleration. 2012 Infiniti M weights approximately 387 kg more than 2007 Audi S4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2012 Infiniti M (565 Nm @ 4400 RPM) has 155 more torque (in Nm) than 2007 Audi S4. (410 Nm @ 3500 RPM). This means 2012 Infiniti M will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi S4.
Compare all specifications:
| 2007 Audi S4 | 2012 Infiniti M | |
| Make | Audi | Infiniti |
| Model | S4 | M |
| Year Released | 2007 | 2012 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4161 cc | 5600 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 420 HP |
| Engine RPM | 6800 RPM | 6000 RPM |
| Torque | 410 Nm | 565 Nm |
| Torque RPM | 3500 RPM | 4400 RPM |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | AWD |
| Transmission Type | Automatic | 7-speed shiftable automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1530 kg | 1917 kg |
| Vehicle Length | 4590 mm | 4945 mm |
| Vehicle Width | 1790 mm | 1844 mm |
| Vehicle Height | 1420 mm | 1514 mm |
| Wheelbase Size | 2660 mm | 2901 mm |
| Fuel Consumption | 10.2 L/100km | 10.2 L/100km |
| Fuel Consumption City | 15.7 L/100km | 14.7 L/100km |
| Fuel Tank Capacity | 63 L | 76 L |
