Hover Car Controller?

Ok I got my hover script working and my hover car hovers although I have yet to learn how to make a controller for the car Simply

Move Forward Relatitve to the camera attached to the car. Rotate left or right upon turning. and move backwards relative to the attached camera

I have tryed attaching the first / third person controlser to it and disableing / enabling them when you get in /out o the car i have attempted to use

 using UnityEngine;
 using System.Collections;
 
 public class ControllableSphereComponent : MonoBehaviour
 {
     public float speed= 30;
     public float Force;
     void FixedUpdate()
     {
         if (Input.GetKey("down"))
         {
             this.rigidbody.AddForce(-Time.deltaTime * Force, 0, 0, ForceMode.Acceleration);
         }
         if (Input.GetKey("left")) 
         {
                         transform.Rotate (Vector3.up * speed * Time.deltaTime);
         }    
         if (Input.GetKey("right")) 
         {    
                         transform.Rotate (-Vector3.up * speed * Time.deltaTime);
         }
         if (Input.GetKey("up"))
         {
             this.rigidbody.AddForce(Time.deltaTime * Force, 0, 0, ForceMode.Acceleration);
             Debug.Log("pressRegisterd");
         }
         }
     }

The Problem is if I turn and then go forward it dosent move forward is moves what ever way was forward before I turned.

And I haven't successfully got the Vector3 to move the car forward or backwards.

If you attach a script Please either comment it out or explain how the script works i am here to learn not to get free scripts

Also My Script to enter and Exit the car is:

 static var selectedId : int;
 static var speed : int = 5;
 var lookSpeed = 15.0;
 var moveSpeed = 15.0;
 
 var rotationX = 0.0;
 var rotationY = 0.0;
 var movespeed=50;
     var walking : boolean=true;
     var minimumEnterRange : float = 10.0;
     var currentVehicle : GameObject;
     public var rearCamera : Camera ;
     public var driverCamera : Camera ;
     
      function Start(){
     rearCamera.camera.enabled = true;
     driverCamera.camera.enabled = false;
      }
        
     function Update(){
     
    
     
     
     if (Input.GetKey(KeyCode.I))
     {
     rearCamera.camera.enabled = false;
     driverCamera.camera.enabled = true;
     }
      
     else if (Input.GetKey(KeyCode.O))
     {
     driverCamera.camera.enabled = false;
     rearCamera.camera.enabled = true;
     }
         if(Input.GetKeyDown(KeyCode.H)){
             if(walking){
                 // find all the vehicles in the scene
                 var vehicles : GameObject[] = GameObject.FindGameObjectsWithTag ("Vehical");
                 // find the closest vehicle we are looking at
                 for(var vehicle : GameObject in vehicles){
                     if(Vector3.Distance(vehicle.transform.position, transform.position) < minimumEnterRange){
                         var vehicleInCameraSpace = Camera.main.transform.InverseTransformPoint(vehicle.transform.position).normalized;
                         if(Vector3.Dot(Camera.main.transform.forward, vehicleInCameraSpace)>.3){
                             currentVehicle = vehicle;
                             break;
                         }
                     }
                 }
                 // if we can find a vehicle close enough then lets get in it.
                 if(currentVehicle){
                     walking = false;
                                         rearCamera.camera.enabled = false;
                     driverCamera.camera.enabled = true;
                     Camera.main.GetComponent(CharacterController).enabled=false;
                     Camera.main.GetComponent(CharacterMotor).enabled=false;
                     Camera.main.GetComponent(FPSInputController).enabled=false;
                     Camera.main.GetComponent(MouseLook).enabled=false;
                     Camera.main.GetComponent(SmoothFollow).enabled=false;
                     Camera.main.GetComponent(SmoothFollow).target=transform;
                     Camera.main.GetComponent(CharacterMotor).enabled=false;
                     currentVehicle.GetComponent(CharacterController).enabled=true;
                     currentVehicle.GetComponent(CharacterMotor).enabled=true;
                     currentVehicle.GetComponent(FPSInputController).enabled=true;
                     rearCamera.camera.enabled = false;
                     driverCamera.camera.enabled = true;
                 }
             } else {
                 // if we are currently driving then lets get out of the vehicle.
                 walking = true;
                                     rearCamera.camera.enabled = true;
                     driverCamera.camera.enabled = false;
                 Camera.main.GetComponent(CharacterController).enabled=true;
                 Camera.main.GetComponent(CharacterMotor).enabled=true;
                 Camera.main.GetComponent(FPSInputController).enabled=true;
                 Camera.main.GetComponent(MouseLook).enabled=true;
                 Camera.main.GetComponent(SmoothFollow).enabled=false;
                 Camera.main.GetComponent(CharacterController).CanControl.enabled=true;
                 currentVehicle = null;
             
             //car stuff disable
                     currentVehicle.GetComponent(CharacterController).enabled=false;
                     currentVehicle.GetComponent(CharacterMotor).enabled=false;
                     currentVehicle.GetComponent(FPSInputController).enabled=false;
                     rearCamera.camera.enabled = true;
                     driverCamera.camera.enabled = false;
             }
     }
     }

P.S: I know theres other Questions like this but none of them helped me.