6 months of a new car sitting in Florida while you are up North a lot of money.
6 car payments. Add insurance and registration. That's a lot of money spent on something you are not using just to have a car to go to the store in for a couple of months while you are there.
If you have a personal car at home you can have it driven down here. There are tons of ads for people who drive cars back and forth just for the RV'ers. The cost of doing that versus new car payments would save you a lot of money. U-Haul has contractors that move trailers, personal cars etc for people. Give them a call that might be the answer for you.
PM me I have BC card for them. They helped me move stuff down here.