Just to help you sell these, I would like to state that they'll bolt onto the bell housings of TONS of cars such as VW Passat, Quantum, Audi A4, A6, 4000, 5000, V8, 80, 90, 100, 200, S4, S6, etc. Pretty much any car that had either a 01A, 01E, or 016 transmission (Quattro or FWD as long as it has the longitudinal tranny). I think the 012 (exclusively FWD?) trannies will work as well. In many cases, the engine mounting brackets will bolt right up too. I think they'll also bolt into some Vanagons and Eurovans with the proper bits and pieces. Don't quote me on that one though.
No, unfortunately they won't fit any of the transverse tranny cars such as Golf, Jetta, etc. These engines are too long, and bell housings don't have the required bolt holes. Just FYI for potential buyers.