Tried some of the ceramic wash and wax as recommended by Dorchester2 on the Sportage this afternoon. Looks shiny but was already, having done a full Autoglym a couple of weeks ago. It seems to help with the beading and water run off. Full report in coming weeks as it weathers.
Off to get some Ibuprofen on my knees now. This cold weather is giving them some pasty and we haven't had our Corfu sun top up for two years now!
