Just yesterday I traded emails with a sales rep there and expressed much the same concern about lack of Porsche support. I asked specifically about the “oval hole” (Boxster, Cayman, 996, 997, 993 and others) as well as the “box” (Macan and others) type. He said they were developing them presently and they should be ready “very soon”. He didn’t offer any more specifics. I sure hope we get a choice of which adaptors we need as part of the basic kit because I wouldn’t want to pay extra for them. It could make the whole setup too pricey. Heck, I’d even settle for a flat top that would allow me to put a hockey puck on it.