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using System;  
  using System.Collections.Generic;  
  using UnityEngine;  

  public class Speedometer : MonoBehaviour{  
   
  public GUISkin guiskin;  
  public GameObject Car;  
  public float CurrentSpeed {  
  get { return Car.rigidbody.velocity.magnitude * 3.6f; }  
  }  
  void OnGUI() {  
  if (guiskin != null) GUI.skin = guiskin;  
  GUILayout.BeginArea(new Rect(30, 20, 220, 75), GUI.skin.window);  
  GUILayout.Label("Speed: " + (int)CurrentSpeed + " km/h");  
  GUILayout.EndArea();  
  return;  
  }  
  }