Toyota add a tiny rear wing

As extra little bit of downforce stripped off some time of a lap around Singapore, Toyota added a mini rear wing behind the usual one. Other teams have done similar things, but Toyota designed a wing with a slot gap. The gap is vital for such high angle of attack in order to prevent flow seperation on its underside.
The rear wing itself is of the same type as the one used at Monaco. It makes maximum use of the regulations by having 3 elements in the central area of the wing, again for more downforce.