2009 Acura MDX 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 Acura MDX. In addition, the cost of maintenance, including insurance, on 2009 Acura MDX 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 90 more horse power than 2009 Acura MDX. (300 HP @ 6000 RPM) In normal driving conditions, 2012 Infiniti FX should accelerate faster than 2009 Acura MDX. With that said, vehicle weight also plays an important factor in acceleration. 2012 Infiniti FX weights approximately 283 kg more than 2009 Acura MDX. 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 127 more torque (in Nm) than 2009 Acura MDX. (373 Nm @ 5000 RPM). This means 2012 Infiniti FX will have an easier job in driving up hills or pulling heavy equipment than 2009 Acura MDX.
Compare all specifications:
| 2009 Acura MDX | 2012 Infiniti FX | |
| Make | Acura | Infiniti |
| Model | MDX | FX |
| Year Released | 2009 | 2012 |
| Body Type | SUV | Crossover |
| Engine Position | Front | Front |
| Engine Size | 3663 cc | 5026 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 300 HP | 390 HP |
| Engine RPM | 6000 RPM | 6500 RPM |
| Torque | 373 Nm | 500 Nm |
| Torque RPM | 5000 RPM | 4400 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | AWD |
| Transmission Type | Automatic | 7-speed shiftable automatic |
| Number of Seats | 7 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1784 kg | 2067 kg |
| Vehicle Length | 4850 mm | 4865 mm |
| Vehicle Width | 2000 mm | 1925 mm |
| Vehicle Height | 1740 mm | 1680 mm |
| Wheelbase Size | 2760 mm | 2885 mm |
| Fuel Consumption | 11.8 L/100km | 11.8 L/100km |
| Fuel Consumption City | 15.7 L/100km | 16.8 L/100km |
| Fuel Tank Capacity | 79 L | 90 L |
