Blimey just come across this and there's a lot of replies , I'll add one more !
My car ( Sept 12 ) was used through the first two winters regardless of weather and salt , it was just about possible to keep it looking OK , plenty of ACF50 certainly helps although it does seem to attract dirt . Certain areas certainly on the early cars had very poor paint , swinging arm and headlight supports being particularly bad . The aluminium bodywork survived very well , as did the interior despite being soaked on numerous occasions . When my replacement chassis was fitted it was much better finished and seems to have some sort of wax coating on it .
Mine is for sale in Krazy Horse at the moment , so if you want to see a well used 15,300 mile example it'd be a good one to look at !
Hugh