Further to a request from Mercedes, it will be permitted to supply engines to a maximum of four Formula One teams in 2014.
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A number of new regulations have been confirmed to govern the new, far more complex power units. It is agreed that only five power units may be used by each driver for the whole season. Any use of an additional complete power unit will result in that driver having to start the race from the pit lane. Any changes of individual elements above the permitted five, such as turbocharger, MGU or Energy Store, will result in a 10 grid place penalty.
No manufacturer will be allowed to homologate more than one power unit during the homologation period from 2014-2020. Changes to the homologated unit will continue to be permitted for installation, reliability or cost saving reasons.
Drivers must now use a gearbox for six consecutive events, an increase from the current five.
No car may use more than 100kg of fuel for the race, from the time the lights go out at the start of the race to the chequered flag. This will be monitored by the use of an FIA approved fuel flow meter.
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Measures have been put in place to ensure that the cars do not incorporate a step in the chassis behind the nose. These changes will also ensure that a genuine low nose, introduced for safety reasons, is always used.
The minimum weight limit has been raised by 5kg, as the power unit is now likely to weigh more than originally expected. The weight distribution has also been changed accordingly.
