I've had only good things to say about BMW of Tulsa, as I live like 3 miles from them. I've mainly dealt with their service department though. If it was me, I probably wouldn't have worried about the transmission, as it is still covered under the 4 yr/50k warranty, correct? I'd think that any problems should show up in that time period, BUT I do think they should have said something to you about the transmission, that was not right.. Maybe if was fixed so they didn't feel any reason to mention it to you since it was fixed? I have no cards in this, and all I know about this is what you posted, but do feel there are two sides to every story and, yes I did see that car on their lot and drooled over it for quite a while. LOL Good luck sir.
2008 135i - FBO + JB4 15ohm + Water Meth