I see, that´s fine.
I have another question: I really like the bouncyness of the wheel joint but it´s limited to a specified angle and I would like it to be able to bounce back into position from any angle. What I´m trying to do is, I´m attaching a dynamic body to a static body, then I want to be able to apply forces from any angle so that the dynamic body moves and rotates but then snaps back into its original position. The way the body of the car in the joints demo snaps back is really neat, I´m trying to do exactly that but without the angle limitation. I tried to make it with distance joints but didn´t get good results.
Is there another way to do this?