An apparatus arranged for temporarily mounting a license plate proximate to a rear windshield portion of a passenger compartment relative to a self-propelled vehicle. The invention includes a "U" shaped bracket mounting suction cups to flanges extending outwardly of the "U" shaped bracket to permit temporary securement and storage of license plates during transport and testing of an associated vehicle. A modification of the invention includes the "U" shaped bracket mounted within a "U" shaped pivot plate, wherein the "U" shaped pivot plate mounts the "U" shaped bracket to permit securement of the "U" shaped bracket for ease of display relative to a rear windshield including a horizontal component to permit downward pivotment of the "U" shaped bracket for ease of visibility of a license plate mounted therewithin. A further modification of the invention includes the "U" shaped bracket including a pull cord mounted medially to a base leg thereof to permit remote lifting of the "U" shaped bracket for enhanced visibility during use of the self-propelled vehicle.