private void refuelVehicle()
        {
            string licensePlate = getLicensePlate();

            Fuel.eFuelType fuelType;
            float          amountOfFuel;

            m_UserInterface.GetfuelType(out fuelType);
            Fuel fuel = m_Garage.ManageGarageDictionary[licensePlate].newVehicle.EnergySource as Fuel;

            if (m_Garage.ManageGarageDictionary[licensePlate].newVehicle.EnergySource is Fuel)
            {
                fuel.CheckFuelType(fuelType);
            }
            else
            {
                throw new ArgumentException("User try to refuel electric car");
            }

            m_UserInterface.GetAmountOfFuel(out amountOfFuel);
            m_Garage.ManageGarageDictionary[licensePlate].newVehicle.EnergySource.FillEnergy(amountOfFuel);
        }