In Germany, most high performance cars like the RS2, are only legal to drive with the manufactures recommended tyres. In case of the RS2 only very few tyres have the official Audi AG clearing. From the original Audi papers of the RS2 I have, the Bridgestoone S02 never was cleared to be used on the RS2. - Hans-Juergen Schneider '93 S2 Avant '89 CQ 20V