<p>A wind bulkhead on a wind-stop base (20) extends in a wind bulkhead surface and fits so as to move between active and inactive positions. A drive device moves the wind bulkhead between active and inactive positions and vice versa and receives power from a motor vehicle's mains supply via a power-transfer device (50), which has a first element (52) on the wind-stop base and a second element (54) on a motor vehicle's bodywork side-panel (82). An independent claim is also included for a cabriolet vehicle fitted with a wind-stop device.</p>
