I got a set of the S4 AVUS alloys in 18's via ebay. There double drilled and fit both 5x100 and 5x112.
http://cgi.ebay.co.uk/18-S4-Audi-VW...oryZ9888QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
I took them with out tyres though as I wasn't interested in the budget name one that they had nor the Avon upgrade.
just dont want the extra cost...running costs etc.... the only reason im changing is that one is curbed and requires powder coating (as its taking a good part of the paint off)...only gonna be changing the damaged one to start with