This rare 1967 Ford Mustang on eBay, with butterfly doors, “has been comprehensively reworked, including a new Ford Racing 302 crate motor, along with a new Tremec T5 gearbox.” Auction page. Click here for first picture in galley.
According to the listing, the Blue Oval invested some $250,000 in exploring the concept, only for it to get nixed by Henry Ford II because it couldn’t be motorized.