Understanding which Infiniti model is which can be challenging, since model designations change when major redesigns occur. For 2014 Infiniti has announced an entire line-up wide naming overhaul. For 2014, the FX37 becomes the QX70. The FX 37 base model, formerly known as the FX 35, has been upgraded to a 325 horse power 3.7 liter V6 engine, and is offered with a standard two-wheel, rear-wheel drive, or an all-wheel drive (AWD) version. There is also a FX 37 Limited Edition that comes with AWD and other additional features. The FX 50 with a 5.0 liter V8 engine is also available with AWD, which brings it increased horse power and torque, but decreases the fuel efficiency a bit.
All models seat 5 comfortably, yet the sloping roof robs a bit of back seat space compared to other crossovers. The LX offers a direct fuel injection system, an anti-lock brake system (ABS with electronic stability, front and rear anti-roll bars, perimeter approach lights, and delay-off high intensity discharge headlights (Bi-Xenon). Also, they come with speed sensing steering, rear camera parking sensors, a security system, a 7-speed automatic transmission with manual shift and adaptive shift control, downshift rev matching, and magnesium paddle shifters. The transmission also has a snow mode that modulates the throttle for better traction on slippery surfaces.
The LX is also equipped with many luxurious features including: heated leather seats, a leather steering wheel with mounted audio controls, auto-dimming mirrors, outside temperature display, a first row LCD monitor, and dual-zoned climate control. Infinit includesi intelligent key with a push-button ignition, a power sunroof, Bluetooth and wireless phone connectivity, AM/FM satellite radio with Sirius XM and a radio data system, a premium sound system with eleven Bose speakers, along with a USB port, iPod connection, MP3 decoder, and much more.
The FX 50 comes with special amenities that are available as optional packages for all of the FX 37 trim models, such as quilted leather seats with heat and cooling functions, a power telescoping tilted wheel, a navigation system; an advanced climate control system with a plasmacluster air purifier, and an around view monitor with moving object detection.
The entire line of Infiniti FX trim models was granted the highest rating of "Good" for Moderate Overlap Front and Head Restraint and Seats by the Insurance Institute for Highway Safety since 2009. Older models going back to 2003 still received Good for Moderate Overlap Front and Marginal for Head Restraint and Seats.
The FX 37 line and the FX 50 were granted the J.D. Power Premium Luxury SUV Overall Quality Award.
Car and Driver wrote an extensive review of their test drive of the FX AWD. The review's only negative was unusual roaring sound that could be heard when the car was raised to higher rpms.
The EPA granted a Greenhouse Gas Emissions score of 4 for the FX 37 while the FX 50 received a score of 3.