public carList FindAllcar(string nomer)
        {
            carList     list = new carList();
            carListItem item = first;

            while (item != null)
            {
                if (nomer == item.Cars.nomer)
                {
                    list.Addcar(item.Cars);
                }
                item = item.next;
            }
            return(list);
        }
        public static void Main(string[] args)
        {
            carList list = new carList(new car("porshe0", "puk", "6666", "20.584", 20));

            list.Addcar(new car("porshe1", "puk", "6666", "20.584", 2));
            list.Addcar(new car("porshe2", "puk", "6666", "20.584", 10));
            list.Addcar(new car("porshe3", "puk", "6664", "20.584", 8));
            list.Addcar(new car("porshe4", "puk", "6664", "20.584", 6));
            list.Addcar(new car("porshe5", "puk", "6666", "20.584", 2));
            Console.WriteLine(list);
            car res = list.Findcar("porshe5");

            Console.WriteLine(res);

            carList resList = list.FindAllcar("6664");

            Console.WriteLine(resList);


            Console.Write("Press any key to continue . . . ");
            Console.ReadKey(true);
        }