I'm having a hard time finding rims for my 2000 A6 Quattro 2.7T. I'm told that there are fitment problems due to the size of the front rotors/calipers. I was wondering if the fitment problems are due to the inside diameter of the rim won't fit over the caliper, or if the inside wall of the rimwon't clear the calipers (exc.offset, or wheel spacers)? Any help with this problem would be greatly appreciated!