It's time to buy two rear tires for my 535i, the fronts are still in great shape(hmmm, wonder how that happened?), and I'm considering going to a bit larger size. Right now there are 245/45/17's on the back. Do you think I could squeeze some 255 or 265/40/17's back there, or will I have a clearance problem with the fender lip because the car sits so low? Thanks to all.