Maths is one thing, but don’t ever feel bad that you can’t get the wheel colliders to work - they’ve been almost unusable since the PhysX update in Unity 5.0. You’re either sliding on ice or jittering off into space with anything but the most generic vehicle.
In case you’re even thinking of feeling bad that you can’t get the wheel collider to work for you, consider that:
- The official example vehicle is constantly losing traction when accelerating at any speed. Unity Technologies themselves couldn’t make it work right.
- Even Edy, the creator of the most popular vehicle package on the Asset store, couldn’t get them to work without disabling most of what they usually do. [(source)]( Unity 5. WheelCollider component is unusable. page-6#post-2077136)
Funnily enough the Unity 4 version of the wheel colliders was actually not bad.