2009 Audi A4 vs. 2012 Infiniti FX
To start off, 2012 Infiniti FX is newer by 3 year(s). Which means there will be less support and parts availability for 2009 Audi A4. In addition, the cost of maintenance, including insurance, on 2009 Audi A4 would be higher. At 5,026 cc (8 cylinders), 2012 Infiniti FX is equipped with a bigger engine. In terms of performance, 2012 Infiniti FX (390 HP @ 6500 RPM) has 168 more horse power than 2009 Audi A4. (222 HP @ 4000 RPM) In normal driving conditions, 2012 Infiniti FX should accelerate faster than 2009 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2012 Infiniti FX weights approximately 457 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.
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 FX (500 Nm @ 4400 RPM) has 50 more torque (in Nm) than 2009 Audi A4. (450 Nm @ 1400 RPM). This means 2012 Infiniti FX will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A4. 2012 Infiniti FX has automatic transmission and 2009 Audi A4 has manual transmission. 2009 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2012 Infiniti FX will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Audi A4 | 2012 Infiniti FX | |
| Make | Audi | Infiniti |
| Model | A4 | FX |
| Year Released | 2009 | 2012 |
| Body Type | Sedan | Crossover |
| Engine Position | Front | Front |
| Engine Size | 2965 cc | 5026 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 222 HP | 390 HP |
| Engine RPM | 4000 RPM | 6500 RPM |
| Torque | 450 Nm | 500 Nm |
| Torque RPM | 1400 RPM | 4400 RPM |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 235 km/hour | 250 km/hour |
| Acceleration 0-100mph | 7.2 seconds | 5.8 seconds |
| Drive Type | 4WD | AWD |
| Transmission Type | Manual | 7-speed shiftable automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1610 kg | 2067 kg |
| Vehicle Length | 4550 mm | 4865 mm |
| Vehicle Width | 1780 mm | 1925 mm |
| Vehicle Height | 1430 mm | 1680 mm |
| Wheelbase Size | 2660 mm | 2885 mm |
| Fuel Tank Capacity | 70 L | 90 L |
