Have roads that go up to the height of a 4x, 8x and maybe 16x cube plus one plate each, then you can make terrain from them.
Yup.EDIT: Your UV Coords are messed up on the sides.
Can you make ramp water?
You could stack a bunch of consecutively smaller water physical zones. It sounds kind of dumb though.I think sloped road bricks should come with the game by default. It'd be nice to have a way to get vehicles up hills without weird painted slopes.