A section of a motor vehicle front low area includes a first extendable elongated part, whose rear end is placed in front of a vehicle structural element embodied in a form of a cradle, whereas the front end thereof is connected to a bar-type structural element of the vehicle by a first connection device. The rear end of the first elongated part is movably mounted in front of the cradle-shaped vehicle structural element. The first connection device includes a connection in a form of a slide bar enabling a substantially longitudinal movement to be carried out and a removable stop member for normally hindering movement up to the removal.