Instead of hiding the entity, can't you just unload it (FreeEntity)?
And when you have your character parented to the car, you can remove the collision-type from your character and just keep the collisions on your car.
That way your character doesn't bump into obstacles ( since it doesn't have collisions anymore) and will stay in place.
And when you have your character parented to the car, you can remove the collision-type from your character and just keep the collisions on your car.
That way your character doesn't bump into obstacles ( since it doesn't have collisions anymore) and will stay in place.