Seems like an enterprising sort would offer a kit that comes w/ a heavy plastic stamp that will bend a standard plate to the contour of a challenger, then offer a bracket that flush mounts and is color coded to Chrysler paints, w/a protectic tinted to match color (but transluscent enough) to see tag that will make it visibly displayed, but not obnoxious and gawky. Sury some of our shots of it out in the world must have front tags on it (to get an idea of what we're dealing with) right?