Unfortunatley ther are 5 diferent variants of mercury grey on ESCORT RS TURBO.That is ,there are 5 different shades.You need to find out which shade was used in the respray.How ever touched up areas will all ways show up even with the correct variant.If it,s just stone chips there are companys out there(CHIPS AWAY) that wll come to your house and blend paint into the stone chips making them invisible.About £30 i think