I am in the process of changing the flooring in my 05 mountain aire (gasser). The old carpet came off with out to much difficulty but now I have to deal with a type of vinyl material the manufacture...
Hard to say without seeing it exactly, but if you choose to remove it, you may wish to purchase an electric multi-tool also known as an oscillating tool. There are a variety of different types out there but you can pick one up for under a hundred bucks. It will make removal of the vinyl much easier.