your favourite wax,detailer or polish
I have not yet used anything on my newly acquired Dart Sport as the weather is still crummy in Chicago. But back in the day 20 years ago on my Dodge Demon and my current daily drivers, I used Meguairs products exclusively and Nu Vinyl on the dash and seats.
I plan on using the Meguairs cleaner wax as I am not in my 20s anymore and I used to spend 8 hours to detail a car. Just clay bar and then the cleaner wax and I might try the Lucas detailer products. I plan on getting a covercraft dustop cover.