The new design (bottom) features a main profile with a more deeply stepped U-shape undercut towards its outer edge compared to the previous version used in Austria (1, top) - this will have an effect on the air pressure under the wing.
The upper flaps are now wider than before (2), with an additional fin to better direct the airflow to the outside of the tyre. The endplate has been modified and no longer has the external fin (3), while the uppermost flap has a different shape compared to the old design (4).