It IS actually controlled like ski stunt... + left mouse button for throttle, right mouse button for brakes.
Yes, it is gravel. Which has a pretty high friction constant at low speeds, and a lower at high speeds... I think it looks just right when he stops like that
When it is finished there will be four bikes in each race, you and three AI:s.
EDIT: The website was not designed by me, I bought a template and the only thing changed is the header.