The front suspension on the W05 impresses me more than any of the other cars. It looks very unobtrusive to flow. Even the brake ducts are in the triangle section the pushrod makes with the upper suspension member and the wheel. All of this attention to detail looks to aid in not restricting flow into the sidepods.
The vortex generators on top of the leading edge of the sidepod line up right with the rear brake wings. There are strakes on the floor that separate this area along with the rear wing mounts and drop-down strakes off of the rear brake wings.