A vehicle (1) with a foldable ramp (4) has its central part of the bumper replaced with a horizontal brace (7) in the bottom part of the foldable ramp (4). The device under this invention allows to connect ends of the brace (7) with the main bearers (3,3) of the vehicle body by means of interlocking modules. The interlocking module consist of a fixed interlocking element (8) connected with the main bearer (3, 3), advantageously by means of a bracket (15), and of a moving interlocking element (9) connected with the brace (7). When the interlocking elements (8, 9) snap in a firm connection is created between the main bearers (3, 3) and the brace (7) in the lengthwise and transverse directions.
