I like Racedeck tiles. I tried epoxy with good effort and high hopes but was badly disappointed.
See my detailed post by seaching Racedeck, or maybe this link will work:
http://www.f30post.com/forums/showth...light=Racedeck
The finished product can slide a bit over time but I now have it fit very closely with the walls so it really can't go anywhere. In the past I used my feet or some creating sharp braking with he car to reposition it a bit.
These are not vinyl but polypropylene so they are hard. Water can seep down between them but they have air vents underneath so moisture is not a problem. (I am talking about the closed-type tiles and not the open "drain" versions).