A door assembly for a motorized vehicle, comprising a door configured to move between an open and a closed position, a first member defining a first axis, and a first support member pivotally coupled to the door and defining a second axis. A linkage assembly is provided and includes a first aim and a second arm, the first arm and the second arm being pivotally coupled to one another, where the first arm is coupled to the first member at a location offset from the first axis and the second arm defines a first slot. A cross member is provided and has a first end and a second end, the first end having a first pin for slidably engaging the first slot and the second end being coupled to the first member. The door assembly further comprises a drive assembly operably coupled to the first member, and a cinching assembly including an actuator and a cinching head, the actuator being coupled to the first member at a first end and the cinching head at a second end. The door is movable between the open and closed positions as the drive assembly operably drives the first member about the first axis.