Remove brown bicycle tire marks from vinyl floor
The only things I see you haven't tried are vinegar and nail polish remover. With the vinegar - just put some on the stain let it sit a bit, then wipe off. I'm not sure it'll help you as you already tried bleach.
About the acetone in the nail polish remover, I'm more optimistic - it cleans everything (just first test it on a part of the vinyl that is hidden under a cupboard or something so you know you won't damage further). Good luck! :)