A closure panel assembly selectively covers an opening formed in a roof of a motor vehicle. The closure panel assembly includes a frame disposed around the opening of the roof. The frame has a longitudinal wall including a guide slot extending between a forward end and a rearward end. A lead screw is disposed adjacent the longitudinal wall and is movable with respect thereto. A panel is movable relative to the lead screw for selectively covering the opening. A sliding bracket is secured to the panel and includes a drive nut extending through the guide slot to threadingly engage the lead screw. The rotation of the lead screw allows for movement of the drive nut to move the panel between an open position and a closed position.