My A3 Sportback will soon need some new tyres. It has the factory fitted 225/45 R17 91W Michelin Pilot Primacy XSEs at the moment. I will probably be changing all four tyres so I can choose what I like. The same Michelin's seem quite expensive compared with some others. I've got some quotes over the internet and BlackCircles.com seem quite competitive and there is one of their partners - a private setup rather than a multi-national - only a few miles away.