As there is no way of my every owning or possibly even seeing a Darrin in person, I was wondering if they were made of solid fiberglass or did they have a backing of some sort? The question came to mind while I was mounting fog lights on my 54 Manhattan, while drilling holes into the front bumper skirt(?) I noticed it was made from some weird material, like fiberglass but it had what appeared to be a thin metal backing.