function pojazd(player)
   car = createVehicle(451,-2028.99,174.43,28.83,0,0,270,"Kierowca",false,0,0)
   warpPedIntoVehicle(player, car)
   outputChatBox("Rozpocz??e? prac? kierowcy!", player)
   addVehicleUpgrade(car,1076)
end
addEventHandler("onMarkerHit", markerStart, pojazd)

function usun(theVehicle, seat)
    local model = getElementType(theVehicle)
    if seat == 0 then
        destroyElement(car)    
        outputChatBox("Zako?czy?e? prac?!", player)
    end
end
addEventHandler("onPlayerVehicleExit", getRootElement(), usun)
addEventHandler("onPlayerQuit", getRootElement(), usun)

--S-SIDE:
----
local markerStart = createMarker(-2028.99,176.43,28.83, 'cylinder', 2.0, 255, 0, 0, 150) -- zapewne inne argumenty.
----

local function pojazd(player,dim)
    if getElementType(player) == "player" and dim and not isPedInVehicle(player) then -- warto doda? sprawdzenie czy gracz wszed? do Markera oraz czy marker jest w tym samym "?wiecie" oraz mo?na doda? inne warunki sprawdzaj?ce 
        local car = createVehicle(451,-2028.99,174.43,28.83,0,0,270,"Kierowca",false,0,0)
        warpPedIntoVehicle(player, car) 
        outputChatBox("Rozpocz??e? prac? kierowcy!", player) 
        addVehicleUpgrade(car,1076) 
    end
end 
addEventHandler("onMarkerHit", markerStart, pojazd) 

--event onPlayerVehicleExit:      function usun(vehicle theVehicle, int seat, player jacker) -- source player
--event onPlayerQuit:            function usun(string quitType, string reason, element responsibleElement) -- source player
local function usun(theVehicle,seat) -- argumenty funkcji r??ni? si? dla Eventow wiec nale?y znale?? elementy wsp?lne.
    if (not isElement(theVehicle)) or getElementType(theVehicle) ~= "vehicle" then -- je?eli theVehicle nie jest typem "vehicle" zapewne wykona? si? event onPlayerQuit
        seat = getPedOccupiedVehicleSeat(source); -- wiec nalezy pobra? potrzebne dane
        theVehicle = getPedOccupiedVehicle(source);
    end

    if seat == 0 and getElementParent(getElementParent(theVehicle)) == resourceRoot then ---- te? nale?y sprawdzi? czy pojazd jest z tego zasobu
        destroyElement(theVehicle)
        outputChatBox("Zako?czy?e? prac?!", source) -- sk?d si? wzi??o player ?  source to gracz (wyja?nienie: https://wiki.multitheftauto.com/wiki/OnPlayerVehicleExit)
    end 
end 

-- https://wiki.multitheftauto.com/wiki/OnPlayerVehicleExit
addEventHandler("onPlayerVehicleExit", root, usun) 

-- https://wiki.multitheftauto.com/wiki/OnPlayerQuit  
addEventHandler("onPlayerQuit", root, usun)