OK...my front tyres are showing wear on the outer edges.....in terms of front wheel alignment on my a4 2.5TDi Avant Quattro Sport, running 18" RS6 replicas & 235/40/ZR/18's tyres what does this mean ? Too much toe in or toe out ? wrong camber ? Or...is this normal wear pattern on a A4 Quattro ? Preston Audi are quoting me £99 + VAT for 4 wheel laser alignment (2 hours work apparently)....other Audi Dealers are looking for in excess of £200 cough ! Is there some special set up with the B6 A4 Quattro ? Anyways..what do you guys out there recommend ?