A vehicle seat having a seat shell, includes a first upper rail, which is arranged on the tunnel side and is movably guided in a first lower rail, and a second upper rail, which is arranged on the sill side and is movably guided in a second lower rail. The first upper rail can be displaced relative to the second upper rail, and due to that displacement the seat shell carries out a rotation about a vertically extending pivot axis. A main memory device is provided on the second upper rail, and at least one spring unit is provided, which acts upon the first upper rail relative to the second upper rail in the longitudinal direction.