Original question: Has anyone mounted Style 326 (19" from E89 Z4) on an E86 (e.g. 2006 Z4M Coupe)?
Answer: Yes -
http://www.zpost.com/forums/showthread.php?t=644663
BMW E89 Z4 Genuine M Double Spoke Style 326 Wheel Set
Front Wheels - 8JX19 ET:29
Rear Wheels - 9JX19 ET:40
http://www.1010tires.com/Tools/Wheel-Offset-Calculator shows the fronts would stick out an extra 13mm (~0.5inch) and the rears would be in about 10mm. I assume a 10mm spacer would fix the rears and the half-inch in the front would be negligible/based on tire choice.
I have stock suspension, but kicked the front camber in via the camber pin removal trick.
Anything I should be concerned about, clearance-wise?