After 2013, the EX37 was renamed as part of a new naming structure resulting in all Infiniti crossovers assuming the QX moniker. A progression from the EX35 sold from 2008 to 2012, the EX37 was most notably identified for its new 3.7-liter V-6 engine. Producing 325 horsepower (a 27 horsepower improvement over its predecessor) and 267 pound-feet of torque, the performance-enhanced Infiniti EX37s fuel economy remained almost identical to the outgoing 2012 EX35.
The 3.7-liter six-cylinder engine was paired with a standard seven-speed automatic transmission featuring a manual mode, Snow Mode and Downshift Rev Matching. Available with rear-wheel drive or all-wheel drive, the 2013 Infiniti EX37 also boasted standard driving assist features such as traction control, Vehicle Dynamic Control and anti-lock braking system with electronic brake force distribution. A rear hatchback spoiler, chrome-finished dual exhaust tips and 18-inch wheels accented the coupe-like appearance of the EX37 crossover vehicle.
Included inside the leather-upholstered, five-passenger cabin, the 2013 Infiniti EX37 incorporated the luxury brands trademark double-wave instrument panel and signature analog clock. Eight-way power-operated drivers seat, dual-zone automatic temperature control, seven-inch Vehicle Information System, rear HVAC vents and a six-speaker audio system came as standard convenience touches inside the EX37.
Intelligent Cruise Control, Lane Departure Warning/Lane Departure Prevention system and a hard drive navigation system with Bose 11-speaker stereo system was optional equipment on the Infiniti EX37. After 2013, Infiniti rebranded their entire model line-up to correspond with a new alphanumeric naming system. The EX37 became the Infiniti QX50 in 2014.