My 2006 Focus Ghia is fitted with highly polished alloy wheels that are protected by a thick transparent plastic coating. Unfortunately, this coating is easily damaged during routine serving or kerbing. This allows water under the plastic that quickly corrodes and spoils what is still a well-presented car. Is there any way apart from undoubtedly expensive professional refurbishment that can be used to repair or at least hide these unsightly areas?

Also, I was perturbed to read in the last two issues of the probably inevitable failure of the dual mass flywheel - I know you did warn us. My TDCI 1800 has just reached 40,000 and is running better than ever. As it has depreciated heavily I was hoping to keep it for another year. Can you advise me?