Williams copy 2-week old Renault design
On Williams FW30 At GP Turkey
Williams have copied Renault's new upper deck front wing design, just two weeks after the French team first raced it. For Renault it was part of their Barcelona aerodynamic package that lifted the team's performance considerably. As marked in the image, the new wing sports small endplates where the nose bridge and the downforce generating panels connect. Despite being less aesthetically pleasing, the solution allows to put a more aggressive angle of attack to the upper elements while helping to reduce the induced drag from it.
Note that this solution was only used by Rosberg and only during the race.
By
Tomba on 12-05-2008 | Aerodynamics
looks like to me beside increasing the angle of attack of the wing, they also reduced weight and drag in the middle of the wing while increasing the area or the edges of the bridge