[COBodom]

Welcome and Congrats on the new ride.

You should do some search on bimmerfest and bimmerpost. You will find plenty of posts regarding your first two questions.

As far as your third question goes, I am not sure if I am reading it right. Are you actually asking if you can stretch 17" RFTs (which is what you now have) onto new 19" rims ?

I hope I misunderstood your question.