About the transmission myth.... some people say that if you never changed the fluid/filter in the recommended schedule and you are way pass that you should do it at all!!! Whats your take on this issue, some bimmers come with bad tranys like the first E46 were having issues but then BMW corrected the issue and then they were rock solid. But I'm curious on the x5 35d to see if it will break. I'm planning on keeping mine for the long run 200k at least.