Rail vehicle comprising - a wagon body (102, 106) defining a vehicle longitudinal direction, a vehicle transverse direction and a vehicle height direction, and - a buffer device, wherein - said buffer device is arranged at a first end of the wagon body (102, 106) and, at least in an activated operating state, projects beyond said first end of the wagon body (102, 106) in the longitudinal direction of the vehicle, - said buffer device comprises at least one impact element (103.2) for an impact partner, situated at the end facing away from said wagon body (102, 106) in the activated operating state, - said buffer device is designed to absorb collisions with an impact partner via a longitudinal displacement of said impact element (103.2) against the wagon body (102, 106) in the vehicle longitudinal direction, - said impact element (103.2) has an impact element height in the vehicle height direction and an impact element width in the vehicle transverse direction, characterized in that - at least one return motion device (105, 107; 108; 205, 207) is provided at the first end of the wagon body (102, 106), said return motion device being designed to cooperate with a complementary return motion device (105, 107; 108; 205, 207) on the impact partner during progressive longitudinal displacement of the impact element (103.2) to reduce a height offset between the wagon body (102, 106) and the impact partner in the vehicle height direction by a return height, wherein - said return height corresponds to at least 20% of the height of the impact element, preferably at least 30% of the height of the impact element, more preferably at least 50% of the height of the impact element. - a wagon body (102, 106) defining a vehicle longitudinal direction, a vehicle transverse direction and a vehicle height direction, and - a buffer device, wherein - said buffer device is arranged at a first end of the wagon body (102, 106) and, at least in an activated operating state, projects beyond said first end of the wagon body (102, 106) in the longitudinal direction of the vehicle, - said buffer device comprises at least one impact element (103.2) for an impact partner, situated at the end facing away from said wagon body (102, 106) in the activated operating state, - said buffer device is designed to absorb collisions with an impact partner via a longitudinal displacement of said impact element (103.2) against the wagon body (102, 106) in the vehicle longitudinal direction, - said impact element (103.2) has an impact element height in the vehicle height direction and an impact element width in the vehicle transverse direction, - at least one return motion device (105, 107; 108; 205, 207) is provided at the first end of the wagon body (102, 106), said return motion device being designed to cooperate with a complementary return motion device (105, 107; 108; 205, 207) on the impact partner during progressive longitudinal displacement of the impact element (103.2) to reduce a height offset between the wagon body (102, 106) and the impact partner in the vehicle height direction by a return height, wherein - said return height corresponds to at least 20% of the height of the impact element, preferably at least 30% of the height of the impact element, more preferably at least 50% of the height of the impact element.