I went to the dealer this week to inquire about some new wheels for my 330xi... I noticed in the bmw accessory book that all of the 19 inch wheels had a warning.... "Not for xi models"... Per the parts guy, Due to the suspension on the xi... 19 or anything bigger will not work. I thought I have seen different.... Has anyone had luck with the larger wheels? If so, can you post what had to be done and which wheels... If not, can anyone explain better than.. " its the suspension" thanks