Wind barrier for cabriolets

The rear windshield (16) for a cabriolet type car is mounted on a roll bar (2) with a transverse beam and two loops (8) projecting upward at sides. It has an unsupported top edge (13) and fills the gap between the two roll bar loops projecting upward from crossbar and is made of transparent plastics. The edges of the plastics windshield engaging the roll bar loops are joggled (17). A fastening (24) on the roll bar loop has a cutout (32) containing a pushbutton (31) which may release the corner of the windshield (25).