2009 Audi A4 vs. 2003 Infiniti FX
To start off, 2009 Audi A4 is newer by 6 year(s). Which means there will be less support and parts availability for 2003 Infiniti FX. In addition, the cost of maintenance, including insurance, on 2003 Infiniti FX would be higher. At 3,497 cc (6 cylinders), 2003 Infiniti FX is equipped with a bigger engine. In terms of performance, 2003 Infiniti FX (276 HP @ 6200 RPM) has 11 more horse power than 2009 Audi A4. (265 HP @ 6500 RPM) In normal driving conditions, 2003 Infiniti FX should accelerate faster than 2009 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2003 Infiniti FX weights approximately 810 kg more than 2009 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2003 Infiniti FX. In wet, icy, snow, or gravel driving conditions, 2009 Audi A4 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, 2003 Infiniti FX (366 Nm @ 4800 RPM) has 36 more torque (in Nm) than 2009 Audi A4. (330 Nm @ 3000 RPM). This means 2003 Infiniti FX will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A4.
Compare all specifications:
| 2009 Audi A4 | 2003 Infiniti FX | |
| Make | Audi | Infiniti |
| Model | A4 | FX |
| Year Released | 2009 | 2003 |
| Body Type | Sedan | Crossover |
| Engine Position | Front | Front |
| Engine Size | 3196 cc | 3497 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 265 HP | 276 HP |
| Engine RPM | 6500 RPM | 6200 RPM |
| Torque | 330 Nm | 366 Nm |
| Torque RPM | 3000 RPM | 4800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1030 kg | 1840 kg |
| Vehicle Length | 4710 mm | 4810 mm |
| Vehicle Width | 1840 mm | 1930 mm |
| Vehicle Height | 1430 mm | 1660 mm |
| Wheelbase Size | 2820 mm | 2860 mm |
