Ive just had 4 new tyres,and straight away noticed very strange reactions to the cars handling, dangerous infact. Ive done some digging and new tyres need a "scrubbing in" period like wearing them in. ive never noticed this before as ive only bought in pairs. but 4 new tyres is very scary...ive done around 600 miles on them and still no better.air pressures are fine. feels like im driving on ice,almost 4 wheel steering. There budgets but have C,C ratings. Ive put my old wheels on and it handles like before really well. rs6 wheels OLD et43 new s4's et45 would that make any difference? I even went and ordered new RARB bushes.and stabalizers.