Originally Posted by wxwax
What are the bumps ahead of the slots on the Ferrari and the Red Bull?
I'm wondering if it is there to create better laminar characteristics when the airflow gets to the slots. The bump draws down air pressure behind it. Airflow therefore tends to hug the surface with more "conviction." When you introduce a scoop such as the slot, the bump ensures that the airflow is eager to go down the scoop, and not around it.