Hi Joe
The roof went all rough and had white 'blooming' in the paint...I brought it to a detailer that was recommended by a Ferrari driver (really good price - its there as I type this so will see the results in a few hours) who said that the car cover allowed water in which was then trapped bwteen the car and cover, and moisture built up in the paint
He checked the car for resprays using a paint meter...only the rear bumper (which I knew) and front (which I suspected) have been...all metal surfaces are original.
Turns out the $$$ car cover could not cope with the bushfire residue fallout + mega harsh Australian sun, and lost its waterproofness.
3 weeks and it will be able to live in a garage!
Yay!
James
PS: Bruce, glad to hear that you saved a $$$$!!!