A Unity ID allows you to buy and/or subscribe to Unity products and services, shop in the Asset Store and participate in the Unity community.
Separate names with a comma.
the easiest way to fix this is by making the wheel model a child of an empty gameobject, rotating it properly and then having the WheelCollider on...
you have to move your Destroy(effect.gameObject) inside the if statement of OnTriggerExit and take the effect variable out of the OnTriggerEnter...