how to modify this code to place it inside a car and move it along the car.

how to modify this code to move it along the direction the car goes.The problem is the camera dont turn correctly when the car turns.Also provide the code to turn camera to 180 degree when the car goes reverse.

 #pragma strict
 var car : Transform;
 var distance : float = 6.4;
 var height : float = 1.4;
 var rotationDamping : float = 3.0;
 var heightDamping : float = 2.0;
 var zoomRacio : float = 0.5;
 var DefaultFOV : float = 60;
 private var rotationVector : Vector3;
 function Start () {
 }
  
 function LateUpdate () {
 var wantedAngel = rotationVector.y;
 var wantedHeight = car.position.y + height;
 var myAngel = transform.eulerAngles.y;
 var myHeight = transform.position.y;
 myAngel = Mathf.LerpAngle(myAngel,wantedAngel,rotationDamping*Time.deltaTime);
 myHeight = Mathf.Lerp(myHeight,wantedHeight,heightDamping*Time.deltaTime);
 var currentRotation = Quaternion.Euler(0,myAngel,0);
 transform.position = car.position;
 transform.position -= currentRotation*Vector3.forward*distance;
 transform.position.y = myHeight;
 transform.LookAt(car);
 }
 function FixedUpdate (){
 var localVilocity = car.InverseTransformDirection(car.rigidbody.velocity);
 if (localVilocity.z<-0.5){
 rotationVector.y = car.eulerAngles.y + 180;
 }
 else {
 rotationVector.y = car.eulerAngles.y;
 }
 var acc = car.rigidbody.velocity.magnitude;
 camera.fieldOfView = DefaultFOV + acc*zoomRacio;
 }