SetParent(null, true) Does not work

Simple script that allows an object to move with the car while on top of it but moves independent again when it falls/jumps off.

When the object enters the trigger it works as intended, however when it exits it changes location (25, 5, 8 relitive to object --> 25, 5, 8 in world position) even though worldPositionStays is set to false. any ideas on how to solve the problem?

 public class AttachObject : MonoBehaviour
 {
     public GameObject Car;
 
     private void OnTriggerEnter(Collider other)
     {        
         other.gameObject.transform.SetParent(Car.transform, true);
     }
     private void OnTriggerExit(Collider other)
     {        
         other.gameObject.transform.SetParent(null, true);        
     }
 }