The 2014 Acura MDX Prototype is the direction for the third generation of the 7-passenger Acura MDX performance luxury SUV, 1.5-inches lower than the outgoing model, and launching by mid-year in both all-wheel-drive and front-wheel-drive layouts. The 2014 MDX will also feature an all-new, more rigid and lightweight chassis and an all-new, direct-injected 3.5-liter i-VTEC SOHC V-6 engine with Variable Cylinder Management.