How to make an "interaction zone".

Questions & Answers
1

I am trying to make like an interaction zone so when you’re with this object range press e to do this action. I read someways on how to do it but I am unsure how to implement it correctly.

For example:
Press E to get in the car.

2

void OnTriggerStay(Collision collision) {
if(collision.gameObject.tag = “car” && Input.GetKey (KeyCode.E)) {
//Do your stuff here
}
}

UnityScript:

function OnTriggerStay(collision : Collision) {
  if(collision.gameObject.tag = "car" && Input.GetKey(KeyCode.E)) {
     //Do your stuff here
   }
 }

Of course, you have to set up the tags.