I have vynle tile in mine and it's not holding up that well. If I had to do it over again I think I would do the rubber coin flooring. I think a winch is a must have. Never know when the car is going to break and not be able to be driven up in the trailer.

DIamond plate under the tires has helped minimize the damge to the floor though.

Also, if you order one, a 48" side door W/ an RV style latch is nice.