Ferrari have appeared at Brazil with a new diffuser modification, introducing its own version of an open fronted diffuser. As marked, the diffuser is now open where it meets the floor, allowing exhaust gases to flow through this opening into the lower deck. Red Bull debuted this type of diffuser, and many teams followed quickly. It is thus surprising that Ferrari comes up with development with just 2 more races to go, especially as this design feature will be outlawed on 2011.
Technically, the change takes part of the exhaust gases through this slot into the lower part of the diffuser where it energizes the airflow and creates additional downforce.