The body of the locomotives in use is different from the prototypes in details. There are three basic types of locomotive bodies where the main differences are the size and placement of the side windows, air intakes and ventilation grids. From ET22-013 big grids on the left side for resistors' cooling were moved from upper part to lower part of the body. From ET22-242 air intakes for engines' cooling were moved from a roof edge to side walls, on both sides, which is most popular configuration.