A device including a box having an opening at least on one side and containing a personal vehicle and a folding seat, respective transfer locations, in which the personal vehicle and the folding seat are located next to and in close proximity to each other, the movable folding seat being capable of being guided between a forward position close to the motor vehicle seat and the transfer location of same, and a seat intended to support the user and guided between the folding seat and the personal vehicle, when the vehicle and the folding seat are in the respective transfer locations of same.
