I think it may be little colder here in mid winter with average temperature around 0°c. I have not had any problems with the rear window. I don't always put it up when I know the car will not be used for a while. My main concern with the rear window is the possibility of scuffing or scratching it when something is pushed into the luggage space. The car is kept in an unheated locked garage in a car park that is under a mini football playing field.

About twice a year I use the RAGGTOPP Convertible Top Plastic Window Cleaner & Protectant Kit which seems to work exceptionally well.

Peter

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