A composed ride, balanced chassis, and charismatic powertrain help the 2016 Infiniti QX50 stand out as an athletic offering. What’s missing here is more communicative steering. A 325-hp 3.7-liter V-6 with rear-drive and a seven-speed automatic is standard; all-wheel drive is optional. The QX50 is longer for 2016, with more than four inches of rear legroom. A standard 7.0-inch infotainment screen is smaller than most rivals; nav, adaptive cruise control, and forward-collision warning are optional.