Добавление методов в интерфейс и класс

ArmoredCar/ArmoredCar/DrawningObjectArmCar.cs

@@ -33,5 +33,8 @@ namespace ArmoredCar
             if (_armCar != null)
                 _armCar.DrawTransport(g);
         }
+        public string GetInfo() => _armCar?.GetDataForSave();
+        public static IDrawningObject Create(string data) => new
+       DrawningObjectArmCar(data.CreateDrawningArmoredCar());
     }
 }

ArmoredCar/ArmoredCar/IDrawningObject.cs

@@ -36,5 +36,10 @@ namespace ArmoredCar
         /// </summary>
         /// <returns></returns>
         (float Left, float Right, float Top, float Bottom) GetCurrentPosition();
+        /// <summary>
+        /// Получение информации по объекту
+        /// </summary>
+        /// <returns></returns>
+        string GetInfo();
     }
 }