I have been approached on a different forum by someone that wants to trade his '99 S3 with 200.000 KM that is completely stock, for my 2002 A3 that has 140.000 KM, + some money his way. What sorts of faults and weaknesses am i looking for on the S3, except for the usual rust along the roof and bottom of the doors. Will my full Milltek exhaust for an A3, fit an S3? Modding the muffler is the least concern. The S3: Audi S3 1,8 T 210 quattro – dba.dk – KÃ¸b og Salg af Nyt og Brugt I have to say i am sort of excited, because S3's are not very common here, but then again, why would you wanna trade and S3 for an A3, even if it has alot less KM on it.