Why so angry powers? I just trying to learn... If you don't want to help, don't. I'm not giving up, just wanting to be mechanically sound. If I knew all of the answers I wouldn't ask! Props to rasta were given because of such a great link that I previously did not know of... I appriciate any cordial convo. about bmers. Not being chastized for a lack of knowledge. In any case, The wheels I would be inquiring about after more research (and reference to rasta's link) are style 121 (e63/e64) 8.5x19 and 9x19 with offsets of 14 and 18 respectively, and style 95 (e65/e66) 9x19 and 10x19 both with offsets of 24mm. If anyone has any "cordial" info as to the fitment on an X3 I would appriciate any input. Again just attempting to learn, and take advantage of the vast knowledge of other BMW fans. Thanks in advance to all input.