No, car decals are not the same as a cling. A cling is a type of sign that adheres to a surface using static electricity rather than an adhesive backing. So while some may call them car clings or window clings for cars this is a misnomer. Generally static clings are better off inside. For vehicles you should choose from the one of the decal options, including car/truck lettering, clear, opaque, perforated, or high adhesive.