under a to d in combination with a control device connected to an air pressure source in a further improvement of such an automobile seat at least a part of the cushion elements of at least the back rest cushion can be provided with an excess pressure valve 37 which provides an air vent from the cushion elements and therefore an effective moderation of the whiplash especially during a sudden unusually great increase in the surface pressure by the back of the driver on the back rest cushion in a collision accident from the rear in the grid for a set cushion shown as a further embodiment in fig5 the reciprocal connecting paths of the individually connected cushion elements which correspond in their configuration to those in fig2 simply illustrated by one line and the pairs of similar circled lower case letters represent various seated positions with the location of the eminences of the ischia the seated positions indicated by the lower case letters are briefly described as follows the eminences of the ischia are located above the cushion elements 6 and 7 whereby the spine is supported by cushion elements 1 to 4 in the last cross row the eminences of the ischia are located above the cushion elements 5 and 6 the pelvis or the spine being likewise supported by the cushion elements 1 to 4 moreover the direct reciprocal connection of the cushion elements 5 and 8 brings about growth or heightening of the latter so that therefore the unburdened part of the seat cushion conforms.