A vehicle with a rollover-protection system is provided, including at least one rollover-protection device arranged in the area of a transverse wall of the vehicle for at least one vehicle seat, with a first module arranged attached to the body with guide devices for a second module that can be moved in it between a lowered rest position and an elevated support position; with a releasable holding device to hold the second module in its rest position; with a locking device, by means of which the second module can be supported automatically in a position deviating from its rest position against a force acting in the direction of the rest position; and with a drive system with a spring-force accumulator, by means of which the second module is held in its rest position and can be moved, when necessary, in the direction of its support position.