417 	/**

   417 	/**

   418 	 * Gets the speed in mph that can be sent into SetDParam for string processing.

   418 	 * Gets the speed in mph that can be sent into SetDParam for string processing.

   419 	 * @return the vehicle's speed

   419 	 * @return the vehicle's speed

   420 	 */

   420 	 */

   421 	virtual int GetDisplaySpeed() const { return 0; }

   421 	virtual int GetDisplaySpeed() const { return 0; }

   422 

   428 

   423 	/**

   429 	/**

   424 	 * Calls the tick handler of the vehicle

   430 	 * Calls the tick handler of the vehicle

   425 	 */

   431 	 */

   426 	virtual void Tick() {};

   432 	virtual void Tick() {};