I hate doing this, but I am posting this thread as a link to r3v where most of the info is. Since the other people who are actively working on this are there, it's sort of the main repository for information. If you saw my last thread about Motronic 1.7 reverse engineering here, it's more of that, but on steroids. Check it out! Feel free to discuss in here, maybe we can come up with a useful project branch too. I'll try to keep this thread updated as things progress on r3v.
https://www.r3vlimited.com/board/showthread.php?t=420029