Summers officially over!

Is there a dead line for you on driving because of collector car insurance?
most based on mileage, I didn't understand the last insurable day part?
Salt Sucks!!
We need a chemist to design a coating that neutralizes effects of salt, what about a por15 undercoat product or something?
I don't have the problem but I feel for anyone who is limited in driving there car because of it.