You could try Audi but they are not going to be cheap.
I have them and i think they lok the nuts, but mine were fitted in the factory, as you say Leddy they would look cack on anything not in that S or RS Range !
I think the dealer told me when i bought my car they are about £500 to buy outright !
Agreed definately not my cup of tea for anything but the S range, and as my A3T is above an S3 I don't believe in lowering myself to that level /ubbthreads/images/graemlins/laugh_roll.gif
But actually they do look quite good on the dark A3's....