Even supports are now aerodynamic

Rear wing supports used to be vertical, flat and rectangular carbon elements placed in the centreline of the car to provide extra strength to the planes of the wing. Nowadays that is no longer the case. Apart from their original means, they are designed as stabilisers for the air passing in between the rear wing endplates. As the arrows on the image show, Super Aguri have also realised this, although it is more like a development coming from Honda Racing F1. The supports will not create any downforce but the curvatious shape was designed so that it is not creating any resistance to the airflow.