Lol, a husser here heh.. haha ^
What I want to make is Dreher's Break Dancer No.2
But I'd need to get this script done of course.
I know a guy that scripts gravity too (He made a Monster 3 simulation, properly simulated) but he says you'd need to let the main platform (main wheel as you say) to also rotate with physics, otherwise the gondelas (cars) won't work with physics??
Either he's doing something wrong, or.. ^^