In a few words, - I don't think sooo!
M3 rims, I believe, have a different offset etc and looking at the fleabay Ad', the fronts, are: 8.5" X 18"s..
OE fronts, on a non ///M - Z4, are 8" x 18"s and the rears, are 8.5" x 18"s, generally..
Can they be made to fit.. Possibly, but at your peril..
Besides which fact, - H O WWW much you got to spend on a set of non OE rims, with NO tyres??!!
Good luck with the quest for something, sooooo outa the box though..