Underbody for the co-installation of an electric engine and a heat engine

A range of at least two different types of motor vehicle each comprising a structural body comprising a central underbody part delimiting a lower part of a cab of each type of vehicle, the vehicle of the first type being provided with a central underbody part of a first type adapted to receive two seats, while the vehicle of the second type is provided with a central underbody part of a second type adapted to receive four seats, characterized in that each central underbody pan of the first and second type comprises:

• a set of first interface elements allowing mounting, on the central underbody part, of components of a first type associated with the function of an internal combustion drive engine mounted on a rear structural part of the structural body which is firmly attached to the central underbody part;
• and
• a set of second interface elements allowing mounting, on the central underbody part, of components of a second type associated with the function of an electric drive motor of the vehicle intended to be mounted on said rear structural part,
• a rear edge of the central underbody part of the first type and a rear edge of the central underbody part of the second type being equipped with a same interface element for connection to the rear structural part of the structural body.