What is the function of the spoiler on the Audi A7?

I've noticed that the Audi A7 has a unique rear spoiler. Can someone explain why it's necessary and how it improves the car's performance?

The rear spoiler on the Audi A7 serves two main purposes: to improve aerodynamics and to provide additional downforce on the rear wheels. This helps increase the car's stability and control at high speeds.

In addition to its functional benefits, the rear spoiler on the Audi A7 also adds a sleek and sporty aesthetic to the car's design. It's definitely a standout feature that sets the A7 apart from other luxury sedans.

As a proud Audi owner, I can attest to the positive effects of the rear spoiler on the A7. It not only enhances the car's performance, but also gives it a more aggressive and athletic feel on the road.