The sight of an errant wheel from Fernando Alonso's Renault bouncing across the track at the 2009 Hungarian Grand Prix, prompted the FIA to impose new rules this season to ensure wheel nuts remain fastened. Ferrari's solution has been to create an entirely new wheel hub, which features a catch either side of the nut that locks into position (see inset) when the mechanic removes his tyre gun following the wheel change.
This solution is from last year! Now in Silverstone Ferrari change that. Beacuse they whant to be faster in the pit stops. So they redesign the nut. So every body knows any about that?