Ferrari F2007 - front rim shields 07 July 2007
Although they've been tested at Barcelona and Paul Ricard, Silverstone marks the race debut for these items. Their purpose is to direct the hot airflow generated under braking away from the wheels and underneath the car (red arrow). The slit in the rim shield has a specific 27-degree angle to achieve this. The hot air accelerates the airflow underneath the car, hence helping with the extraction of air via the diffuser. This provides additional downforce, better stability and an improved aero balance. As you can see, the function of the front shields is completely different to the rears, which simply aid brake cooling and reduce turbulence.