In this closeup, taken from Jeremy Lines' photo from the Miller Motorsport Park Ferrari event, you can clearly see the Ferrari "Wheel Donut" brake disk cladding in anger. This feature is shared by the 599xx and then just released 599 GTO. You will notice that, especially in the front, it has changed substantially from the way it was at the 599xx presentation in 2009 and I would venture to say their function is not so much F1 circa 2009 inspired aero as forced air cooling for the disks.
An amusing note, Kleen Wheels markets their brake dust shields as being "Turbo vented to cool your brakes"! Hey if it works on the 599xx... slap!
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