2005 Audi S4 vs. 2009 Infiniti FX
To start off, 2009 Infiniti FX is newer by 4 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 4,161 cc (8 cylinders), 2005 Audi S4 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (340 HP @ 6300 RPM) has 37 more horse power than 2009 Infiniti FX. (303 HP @ 6800 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 2009 Infiniti FX. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 121 kg more than 2009 Infiniti FX. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2005 Audi S4 (410 Nm) has 55 more torque (in Nm) than 2009 Infiniti FX. (355 Nm). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2009 Infiniti FX.
Compare all specifications:
| 2005 Audi S4 | 2009 Infiniti FX | |
| Make | Audi | Infiniti |
| Model | S4 | FX |
| Year Released | 2005 | 2009 |
| Body Type | Convertible | Crossover |
| Engine Position | Front | Front |
| Engine Size | 4161 cc | 3498 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 303 HP |
| Engine RPM | 6300 RPM | 6800 RPM |
| Torque | 410 Nm | 355 Nm |
| Engine Compression Ratio | 11.0:1 | 10.5:1 |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1840 kg | 1719 kg |
| Vehicle Length | 4580 mm | 4870 mm |
| Vehicle Width | 1780 mm | 1930 mm |
| Vehicle Height | 1400 mm | 1660 mm |
| Wheelbase Size | 2660 mm | 2890 mm |
| Fuel Consumption | 10.2 L/100km | 11.2 L/100km |
| Fuel Consumption City | 13.8 L/100km | 14.7 L/100km |
| Fuel Consumption Overall | 11.8 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 63 L | 90 L |
