I have a line on a nice set of staggered 18" MB AMG rims and tires that I'd like to put on my 2007 base coupe. I've used the "fitment tool" link provided in this forum and it looks like there would be no clearance problems with the proposed wheel / tire combination. The only problem is that the wheels are drilled for 14mm lugs, while the xfire has the 12mm setup. Is there a good way to make this mod to 14mm or should I pass on the setup and look some more for the 12's? Thanks for a great forum!