Could somebody refresh me again please on the size of B5 RS4 alloys. Aren't the genuine ones a little too wide for a 'non-arched' S4? I have RS4 replicas on at the moment and off the top of my head they are 8J,............aren't genuine ones 8.5J? (or was it 7.5J and 8J respectively?). I'd like to get some genuine Audi wheels and the genuine ones that pop up on Ebay tend to have the 225 40 18 tyres on that I have now. So, were the ones fitted to the TT a slightly narrower version of the RS4 ones? Cheers ladies.