F1 2011 Technical Regulations

Here are some rules changes for 2011.

The car weight minimum has been increased, presumably to encourage teams to use KERS:

From 2011, the minimum weight of the car must not be less than 640 kg at all times during the event.

The FIA also codified their latest complicated, driver-implemented, computer-arbitrated, invisible passing assist scheme, through use of movable aerodynamic pieces:

From 2011, adjustable bodywork may be activated by the driver at any time prior to the start of the race and, for the sole purpose of improving overtaking opportunities during the race, after the driver has completed two laps.

The driver may only activate the adjustable bodywork in the race when he has been notified via the control electronics that it is enabled. It will only be enabled if the driver is less than one second behind another at any of the pre-determined positions around each circuit.

The system will be disabled the first time the driver uses the brakes after the system has been activated. The FIA may, after consulting all the competitors, adjust the time proximity in order to ensure the purpose of the adjustable bodywork is met.

This phrase codifies FOTA's agreement to avoid use of the F-duct for 2010 and beyond into the technical regulations:

With the exception of the parts necessary for the driver adjustable bodywork, any car system, device or procedure which uses driver movement as a means of altering the aerodynamic characteristics of the car is prohibited from 2011.

And the 107% rule returns for 2011 even though it still isn't a good idea:

From 2011, any driver whose best qualifying lap exceeds 107% of the fastest Q1 qualifying time will not be allowed to take part in the race.

Under exceptional circumstances, however, which may include setting a suitable lap time in a free practice session, the stewards may permit the car to start the race. Should there be more than one driver accepted in this manner, the grid order will be determined by the stewards.