2005 Audi S4 vs. 2010 Infiniti M
To start off, 2010 Infiniti M is newer by 5 year(s). Which means there will be less support and parts availability for 2005 Audi S4. In addition, the cost of maintenance, including insurance, on 2005 Audi S4 would be higher. At 4,493 cc (8 cylinders), 2010 Infiniti M is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (340 HP @ 6300 RPM) has 15 more horse power than 2010 Infiniti M. (325 HP @ 6400 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 2010 Infiniti M. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 121 kg more than 2010 Infiniti M. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2010 Infiniti M (456 Nm) has 46 more torque (in Nm) than 2005 Audi S4. (410 Nm). This means 2010 Infiniti M will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi S4.
Compare all specifications:
| 2005 Audi S4 | 2010 Infiniti M | |
| Make | Audi | Infiniti |
| Model | S4 | M |
| Year Released | 2005 | 2010 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4161 cc | 4493 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 325 HP |
| Engine RPM | 6300 RPM | 6400 RPM |
| Torque | 410 Nm | 456 Nm |
| Engine Compression Ratio | 11.0:1 | 10.5:1 |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1840 kg | 1719 kg |
| Vehicle Length | 4580 mm | 4940 mm |
| Vehicle Width | 1780 mm | 1810 mm |
| Vehicle Height | 1400 mm | 1530 mm |
| Wheelbase Size | 2660 mm | 2910 mm |
| Fuel Consumption | 10.2 L/100km | 11.8 L/100km |
| Fuel Consumption City | 13.8 L/100km | 16.8 L/100km |
| Fuel Consumption Overall | 11.8 L/100km | 14.7 L/100km |
| Fuel Tank Capacity | 63 L | 76 L |
