wheelColliders attached to wheel Models

How does the wheel collider know to stay with the wheel model?

Do you have to do this in a update or fixed update manually so that the

Transform of the model = Transform of the Collider

Or is there some parent Child thing that you do?
Or do you attach the collider to the model with a joint?

Does the wheel collider need a rigidbody.
Does the wheelModel also need a capsule collider?

I already have a few car tutorials but they don’t explain the concepts.

Confused.

Dan

In the “Basic Car Tutorial” from the ‘Showcase’ forum all that is very well explained.
Thanks to Maxwelldoggums.

I cannot find answers to my conceptual questions in that tutorial as they are not explained.

Can someone please field the questions rather than pointing me to a tutorial.

Dan