What is the function of the Audi A2's active rear spoiler?

I've noticed a strange contraption on the back of the Audi A2 and I'm curious about its purpose. Can someone please explain the active rear spoiler on the Audi A2?

The active rear spoiler of the Audi A2 serves two main functions: to reduce drag and increase downforce for improved handling at higher speeds. The spoiler automatically extends and retracts based on the car's speed and driving conditions.

Not only does the active rear spoiler of the Audi A2 improve performance, but it also adds a sleek and sporty look to the car. It's a functional and stylish addition to the design.