2009 Audi S4 vs. 2007 Infiniti FX
To start off, 2009 Audi S4 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Infiniti FX. In addition, the cost of maintenance, including insurance, on 2007 Infiniti FX would be higher. At 4,161 cc (8 cylinders), 2009 Audi S4 is equipped with a bigger engine. In terms of performance, 2009 Audi S4 (340 HP @ 6800 RPM) has 65 more horse power than 2007 Infiniti FX. (275 HP @ 6200 RPM). In normal driving conditions, 2009 Audi S4 should accelerate faster than 2007 Infiniti FX.
Because 2009 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 2007 Infiniti FX. In wet, icy, snow, or gravel driving conditions, 2009 Audi S4 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, 2009 Audi S4 (410 Nm @ 3500 RPM) has 47 more torque (in Nm) than 2007 Infiniti FX. (363 Nm @ 4800 RPM). This means 2009 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2007 Infiniti FX.
Compare all specifications:
| 2009 Audi S4 | 2007 Infiniti FX | |
| Make | Audi | Infiniti |
| Model | S4 | FX |
| Year Released | 2009 | 2007 |
| 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 | 275 HP |
| Engine RPM | 6800 RPM | 6200 RPM |
| Torque | 410 Nm | 363 Nm |
| Torque RPM | 3500 RPM | 4800 RPM |
| Engine Bore Size | 84.5 mm | 95.6 mm |
| Engine Stroke Size | 92.8 mm | 81.4 mm |
| Fuel Type | Gasoline | Diesel |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Length | 4580 mm | 4810 mm |
| Vehicle Width | 1780 mm | 1930 mm |
| Vehicle Height | 1400 mm | 1680 mm |
| Wheelbase Size | 2660 mm | 2860 mm |
| Fuel Consumption Highway | 11.2 L/100km | 10.2 L/100km |
| Fuel Consumption City | 16.8 L/100km | 13.8 L/100km |
| Fuel Consumption Overall | 14.7 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 63 L | 90 L |
