According to one embodiment, a car body section (50, 50', 60, 60', 70, 70') for a multi-unit rail vehicle (500, 600, 700) includes a first car body section (7, 7') and a second car body section (6, 6'), the second car body section being connected to the first car body section (7, 7') so as to be rotatable about a
vertical axis (10, 10', z) of the car body section (50, 50', 60, 60', 70, 70'). A first passenger transition area (P1, P1') is formed between the first car body section (7, 7') and the second car body section (6, 6'). The second car body section (6, 6') has, at one end facing away from the first car body section (7, 7'): two mechanical
coupling elements (11, 11') for
coupling to another car body section (50', 50, 60', 60, 70', 70); an electrical
coupling element (2, 2') for electrically connecting to the another car body section (50', 50, 60', 60, 70', 70); and a
bellows (4, 4') for a second passenger transition area (P2) to the another car body section (50', 50, 60', 60, 70', 70), or a connection for the
bellows (4, 4'). The mechanical coupling elements (11, 11') are connected to the second car body section (6, 6') via respective joints (1, 1'), the joints enabling a rotational movement about a
horizontal axis (y) perpendicular to the
vertical axis (z) and a longitudinal axis (x) of the second car body section (6, 6'), the longitudinal axis being perpendicular to the
vertical axis (z).