Articulated railway vehicle, with an improved modularity

A railway vehicle including a plurality of cars articulated to one another, the plurality of cars comprising:

• a single first key car having a first architecture, the first key car configured as the first car placed when assembling the railway vehicle, and mechanically the first car of the vehicle mounted on its bogies,
• a plurality of second cars, having second architectures similar to one another and different from the first architecture,
• third end cars, having a third architecture different from the first and second architectures, wherein:
• the first key car extends in a longitudinal direction between two first ends, the first architecture comprising, at each first end, a first support for one of the plurality of second cars,
• each second car extends in a longitudinal direction between two second ends, the second architecture comprising, at one of its second ends, a second support for an additional second car of the plurality of second cars or one of the third end cars, and at the other of its second ends, a connector for connecting to the first or second support of first key car or one of the second cars,
• each second car adjacent to the first key car includes, at one of its second ends, a bogie shared with the first key car, and at the other of its second ends, a bogie shared with another second car of the plurality of second cars, each additional second car of the plurality of second cars, includes at least at one end, a bogie shared with one of the second cars of the plurality of second cars,
• wherein the railway vehicle comprises a single dining area having a preparation part, in which food and beverages are stored, prepared by a dining service person, and sold, and a dining part, which is a room arranged specifically for dining, including tables and/or seats, and the single dining area is arranged in one of the second cars of the plurality of second cars,
• wherein the first support on both ends of the first key car extends below each connector of the respective second car adjacent the first key car such the connector defines a space between the first key car and the respective second car and that a vertical plane extends through the first support, the corresponding connector and between wheels of the shared bogie of the first key car and the respective second car.