Hi, just after a bit of help. My a6 has 18 inch sline alloys on it with 245/45 tyres. Ive ssen some alloys which are the same but feom an a4 and have 235/45 tyres, i know the tyres arent as wide but will there be any difference in the alloys? The 1's with 235's are in better condition, so was wondering if the 245's would fit on these alloys.