Oben: new bool:licht[MAX_VEHICLES];
bei OnPlayerKeyStateChange:
if(newkeys & KEY_CROUCH)
	{
	    if(IsPlayerInAnyVehicle(playerid))
	    {
	   		new engine,lights,alarm,doors,bonnet,boot,objective;
	 		new vid = GetPlayerVehicleID(playerid);
		   	if(licht[vid] == false)
		   	{
			   	GetVehicleParamsEx(GetPlayerVehicleID(playerid),engine,lights,alarm,doors,bonnet,boot,objective);
			    SetVehicleParamsEx(GetPlayerVehicleID(playerid),engine,VEHICLE_PARAMS_ON,alarm,doors,bonnet,boot,objective);
			    licht[vid] = true;
		   	}
		   	else if(licht[vid] == true)
		   	{
			   	GetVehicleParamsEx(GetPlayerVehicleID(playerid),engine,lights,alarm,doors,bonnet,boot,objective);
			    SetVehicleParamsEx(GetPlayerVehicleID(playerid),engine,VEHICLE_PARAMS_OFF,alarm,doors,bonnet,boot,objective);
				licht[vid] = false;
			}
  		}
    }