Home Ā» 355HP, 4.7s 2016 BMW X4 M40i Brings SuperTruck Style and Pace from $55k Ā» 2016 BMW X4 M40i 81 2016 BMW X4 M40i 81 Home Ā» 355HP, 4.7s 2016 BMW X4 M40i Brings SuperTruck Style and Pace from $55k Ā» 2016 BMW X4 M40i 81