How to get a ai to drive to a raycast

I am making a script for a AI vehicle (Robot)to follow (drive, goto) the hit of a raycast Think of it as toying with a dog with a laser. You point laser = dog follows laser.

I think this sort of script is used. var speed : float = 0.6; speed * Time.deltaTime but im missing something... Im guessing its along these lines... var bot : GameObject; //The robot that must follow the raycast var speed : float = 0.6 //Speed of the robot bot.transform.position, speed * Time.deltaTime =(Hit.point);

So heres my current script.

 var bot : GameObject; //The robot that must follow the raycast
 var Range : float; // Range of the raycast
 var mesh : GameObject; //Cammea the raycast comes from
 
 var Hit : RaycastHit; //Impact of the raycast the robot must follow
 
 var speed : float = 0.6; //Speed of the robot
 
 //References of how i learnt about raycasting
 //http://answers.unity3d.com/questions/15761/click-on-terrain-and-record-vector3-location-i-cli.html
 //http://www.youtube.com/watch?v=cZsG4dfCUec
 //http://www.youtube.com/watch?v=-F_w3RDRbN4
 
 function Update () {
 if(Input.GetMouseButtonUp(1))
 
 var Directionofline : Vector3 = mesh.transform.TransformDirection(Vector3.forward);
 
     Debug.DrawRay( mesh.transform.position, Directionofline * Range, Color.yellow); //Raycast in visual
            
         if(Physics.Raycast( mesh.transform.position, Directionofline, Hit, Range)){
         
                 if( Hit.collider.gameObject){
             
                     bot.transform.position, speed * Time.deltaTime =(Hit.point); //The final result of the script
 
                     Debug.LogWarning("Potatoes!"); //Success the script works!
                     }
                     }
                     }

All scripts above are attached to the player camera (Camera.main)

Im not sure if i should attach the movement script to the raycast script or on the robot it self (which is currently a cube with ridgid body) as the beginings of the script is on the raycast.

Also if you can provide something for turning the robot instead of sidestep, that would be cool!

I'd basicly like it to move like a tank.

Edit: Ok clearly i didnt explain it well enough. The aim is to get the 'bot' variable to move (as in character move) to the point the raycast has hit, which is done. So what do i do here?

bot.transform.position, speed * Time.deltaTime = (Hit.point)