Thought the HCS was a local promotion, just the badges tacked on to, basically, a custom color car. Was not sure Ford would have noted it?
Thought it was kinda like the other local promo types; ski country special, bluebonnet special, twister special, cardinal special, etc. and were just dealer gigs with stickers/decals/badges that the dealer would apply and would not trigger a Ford option on the Mustang build?
Like SOME of the other specials they can be identified (if the color or other parts installed at the factory were non0 regular production options) by the 6 digit DSO's since they would have been ordered in a group or groups (all sharing a common DSO)