function handling (getPlayerFromName, command) 
		local veh = getPedOccupiedVehicle ( getPlayerFromName ) 
		if veh then  
		local success = setVehicleHandling(veh, getPedOccupiedVehicle(getPlayerFromName("stefan")),"mass",1500) 
		end 
		end 
		addCommandHandler ("change", command, getPlayerFromName)