Abstract: A panel cover assembly is provided for a forward area of a frame opening of a top storage compartment into which, when the rear lid is open, a folding top with a fixed rear end can be folded inward. A cover panel serves as a parcel shelf when the top is closed, which cover panel is displaced rearward when the top is opened. Side flaps are arranged with mirror symmetry and articulated to ends of the cover panel. Mechanical forced control of the folding motion of the side flaps is provided as a function of the position of the cover panel that is displaceable in the lengthwise direction of the vehicle. The side flaps are constantly urged by springs in an upwardly folded direction and are each foldable downwardly and backwardly into their covering positions by a tensioning cable that is secured to the forward end by displacement of the cover panel rearward into its covering position.