How does the active kidney grille work in the BMW M7?

I've heard about the active kidney grille in the BMW M7, but I'm not sure exactly how it works. Can you explain it to me?

The active kidney grille in the BMW M7 is actually a surprisingly simple yet effective design. It uses sensors to detect the temperature and air flow around the car. When the engine needs more air for cooling, the grille automatically opens up to allow more air in. This helps improve engine performance and fuel efficiency.

The active kidney grille in the BMW M7 is designed to not only improve performance, but also to enhance the aerodynamics of the car. By channeling air into the engine, it helps reduce drag and improve overall handling.