Originally Posted by BrokenVert
As a study of aerodynamics, I really dont get these noses. Id love to see the CFD data on these things to figure out what they actually accomplish. I just see loads of drag
The airflow on top isn't the issue, the airflow underneath is what matters. Having the step is the best way to maximize the height of the front wing to allow more air to the rear of the car while still meeting new regulations. Exception being McLaren since their car has been designed around a low nose since 2009. From what I understand the step itself is relatively aerodynamically neutral.