Rail vehicle - comprising a central buffer coupling, which comprises, as elements, a coupling head, a bar-like coupling shaft and a spring mechanism, - in which the coupling head is configured for connection to a coupling head of a further rail vehicle, - in which the coupling head is connected to a first side of the coupling shaft and in which a second side of the coupling shaft dips into the spring mechanism and is mounted and fastened therein in such a way that, in the operative mode of the rail vehicle, impact forces or tensile forces acting on the coupling head are elastically absorbed by the spring mechanism, which is connected to a carriage body of the rail vehicle, and are transmitted to the carriage body, - comprising a support, - which is coupled to the coupling shaft and connected to the carriage body, - which is configured to vertically support the coupling shaft in order to downwardly support it in a resilient manner in the vertical direction, - which is configured to bear the dead weight of the elements of the central buffer coupling in order to implement a horizontal orientation of the central buffer coupling in the operative mode of the rail vehicle, - wherein a collision element is arranged between the support and the carriage body and is connected both to the support and to the carriage body, - wherein the collision element has a deformation region which is configured in such a way that kinetic energy, which is transmitted via the coupling shaft and via the coupled support to the collision element in the event of a collision, non-reversibly deforms the deformation region in a predefined manner. - comprising a central buffer coupling, which comprises, as elements, a coupling head, a bar-like coupling shaft and a spring mechanism, - in which the coupling head is configured for connection to a coupling head of a further rail vehicle, - in which the coupling head is connected to a first side of the coupling shaft and in which a second side of the coupling shaft dips into the spring mechanism and is mounted and fastened therein in such a way that, in the operative mode of the rail vehicle, impact forces or tensile forces acting on the coupling head are elastically absorbed by the spring mechanism, which is connected to a carriage body of the rail vehicle, and are transmitted to the carriage body, - in which the coupling head is configured for connection to a coupling head of a further rail vehicle, - in which the coupling head is connected to a first side of the coupling shaft and in which a second side of the coupling shaft dips into the spring mechanism and is mounted and fastened therein in such a way that, in the operative mode of the rail vehicle, impact forces or tensile forces acting on the coupling head are elastically absorbed by the spring mechanism, which is connected to a carriage body of the rail vehicle, and are transmitted to the carriage body, - comprising a support, - which is coupled to the coupling shaft and connected to the carriage body, - which is configured to vertically support the coupling shaft in order to downwardly support it in a resilient manner in the vertical direction, - which is configured to bear the dead weight of the elements of the central buffer coupling in order to implement a horizontal orientation of the central buffer coupling in the operative mode of the rail vehicle, - which is coupled to the coupling shaft and connected to the carriage body, - which is configured to vertically support the coupling shaft in order to downwardly support it in a resilient manner in the vertical direction, - which is configured to bear the dead weight of the elements of the central buffer coupling in order to implement a horizontal orientation of the central buffer coupling in the operative mode of the rail vehicle, - wherein a collision element is arranged between the support and the carriage body and is connected both to the support and to the carriage body, - wherein the collision element has a deformation region which is configured in such a way that kinetic energy, which is transmitted via the coupling shaft and via the coupled support to the collision element in the event of a collision, non-reversibly deforms the deformation region in a predefined manner.