High downforce rear wing on RB9

Contrary to several other teams that focus on introducing major upgrade packages at once, Red Bull is steadily improving its car by adding small changes each and every Grand Prix. At Monaco, the team had a new rear wing endplate, copying a feature that was debuted by Williams and later also copied by Marussia and McLaren.

The vertical opening close to the leading edge of the endplate creates a small vertical aerofoil with the aim to pull more air in between the endplates. The lower pressure of air underneath the rear wing elements will also help with this effect. This will not only lead to a little additional downforce but may also marginally improve the behaviour of air flowing in between the inner wall of the rear tyre and the rear wing endplate.