I have recently purchased a set of wheels off of ebay. The front is 19x8 with offset 38mm and the rear is 19x9.5 with offset 40mm. The seller said I have no problem fitting 265/30 in the rear without rubbing or fender modification. These rims have been collecting dust in my garage because I'm not sure what size tread to buy. I would like to pack on the fattest rear tire, either 255/30 or 265/30, without having to modify my bimmer. I have been saving 3 years just to buy these rims..lol. I hope the seller is telling the truth, can't return them now. Any suggestions? Thanks.