when u have no clearcoat (like on most ferraris), you have to use softer car wash, such as meg's hi-tech wash #00. usually this kind of wash liquid does not strip wax and it more gentle. the trick, as always, is in lightly using a claybar and then polishing the paint. no clearcoat means no typical reflective gloss, but it allows for a much deeper colour and shine. polish is vital in keeping a non-clearcoat car's paint fresh and oily. of course, two thin layers of wax will give it adequate protection for a couple weeks