disclosed is a method of coating a substrate comprising the steps of forming a basecoat by coating the substrate with one or more applications of a pigmented basecoating composition ; and thereafter forming a topcoat by coating the basecoat with one or more applications of an essentially clear topcoating composition ; wherein the basecoating composition and / or the topcoating composition comprises an addition interpolymer containing at least one silicon atom directly bonded to a hydrolyzable group , which addition interpolymer is derived from a mixture of copolymerizable ethylenically unsaturated monomers containing an isobornyl group - containing monomer selected from the group consisting of isobornyl methacrylate , isobornyl acrylate and a mixture thereof . the amount of isobornyl group - containing monomer based on the total weight of the mixture of copolymerizable ethylenically unsaturated monomers ranges from 10 percent to 60 percent by weight .