Thank you sir! Easier than I thought :)
The wheels will need to be physics or at least solid. They are attached now with joints. Is it possible to bounce with only solids as wheels and elasticity as physics on something else. I solved it with joints on the wheels but they are allways hanging down :( can you somehow make them go up in up direction when flipping the plane around.
And what about flipping a part that flips in the wrong direction you know anything about that?
Kind regards