How does the new Audi A7 achieve better aerodynamics?

I've read that the new Audi A7 boasts improved fuel efficiency and performance, partly thanks to its improved aerodynamics. Can you explain how exactly this is achieved and the benefits of these advancements?

The new Audi A7 has a redesigned front grille with active shutters that automatically close at higher speeds, reducing air resistance and resulting in better fuel efficiency. Not only does this save on fuel costs, but it also helps the car to perform more efficiently and smoothly.

Additionally, the A7 features a new underbody design with an optimized diffuser and air vents. These elements work together to create a low-pressure area behind the car, allowing it to glide through the air with minimal drag. This results in better handling and a more comfortable ride.

Another important factor in the A7's improved aerodynamics is its sleek and stylish exterior design, which was developed through extensive wind tunnel testing. The car's streamlined shape helps to minimize air resistance and turbulence, leading to improved performance and fuel efficiency.