The OE size for the Mk2 is 205/45x17, due to the wider track on the Mk2 (7.5J) the tyre can rub on both sides due to the clips that hold the arch liner. If you move the arch liner over the metal tabs and secure, then you shouldn't have any more problems of the front tyres rubbing the arch liner, either on full lock or on really bumpy road surfaces.
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