Driving home in traffic this evening and I look a couple of lanes over and see a nice looking dark colored Crown Vic. This Crown Vic had Shelby markings on either the trunklid or the hood (i forget which) and a very authentic looking badge on the front fender. I know there have been many different Shelby's over the years, but I didn't think they ever did a Crown Vic. So is this a thing, or a clever knock-off?