Please have any skins posted here as early as possible before the above date, to give the checkers a chance to look at them.
I will try and get some updated instructions out in the next couple of days, but for cars which share visual models (eg. the F430 in GTC and GT2 guises), please do a single skin and a car file for each model (if you want both) with the same car number. They can then share the same skin, which will cut the download size down compared to having to copy the skin.
Not quite sure how it's going to work technically yet.