Problem is cvt transmission. Transmission main seal leak. Whine, to loss in acceleration and power. At certain speed. Cvt internal belt flapping. Resulted in full shut down of vehicle while on highway. Caused speed control sensor and throttle body sensor to go out which started minor electrical fire in the engine compartment which could have resulted in great bodily injury and possibly hurting others if accident would have and very much could resulted in for sure. Multiple times to mechanic resulting in stress and out of pocket expensive currently with a mechanic now. Nissan cvt transmission...