function consoleAddUpgrade ( thePlayer, commandName, id )

        if ( isPedInVehicle ( thePlayer ) ) then

            local id = tonumber ( id )

            local theVehicle = getPedOccupiedVehicle ( thePlayer )

            local success = addVehicleUpgrade ( theVehicle, id )

            if ( success ) then

                outputConsole ( getVehicleUpgradeSlotName ( id ) .. " upgrade added.", thePlayer )

            else

                outputConsole ( "Failed to add upgrade.", thePlayer )

            end

        else

            outputConsole ( "You must be in a vehicle!", thePlayer )

        end

end

addCommandHandler ( "dodaj.tune", consoleAddUpgrade )