Vehicle Movement Script Not Moving Forwards

My vehicle script rotates but doesn't move forwards. Whats the problem with my code? EDIT Still doesent work after removing spaces from name. What could i add to make it work?

 var car : Transform;
 var speed : float = 1.0;
 var rotateSpeed : float = 3.0;
 
     function Start() {
     
     car.GetComponent("Drive Script").enabled = false;
     }
     
     
     function Update() {
     if(Input.GetKeyDown("t"))
     {
         car.GetComponent("Drive Script").enabled = false;
     }
     
     if(Input.GetButtonDown("Action"))
     {
         car.GetComponent("Drive Script").enabled = true;
     }
     var controller : CharacterController = GetComponent(CharacterController);
     transform.Rotate(0, Input.GetAxis ("Horizontal") * rotateSpeed, 0);
     if (controller.isGrounded) {
     // We are grounded, so recalculate
     // move direction directly from axes
     moveDirection = Vector3(0, 0,
     Input.GetAxis("Vertical"));
     moveDirection = transform.TransformDirection(moveDirection);
     moveDirection * speed;
     
     }

}