The active air intake flaps in the front air intakes act to reduce fuel consumption during everyday trips and to achieve superlative performance on sporty drives. Already proven on the 918 Spyder, the flaps close automatically while the car is in motion and thereby reduce drag.
On demand or in SPORT or SPORT PLUS mode, the flaps open and help to provide optimum engine cooling.
This means that cooling air is supplied only to the extent that it is actually needed. That’s efficiency. Of the intelligent kind.