Why does the Audi A7 have a four-wheel steering system?

I noticed that the Audi A7, unlike most other cars, has a four-wheel steering system. Can you explain the benefits of this feature and why Audi chose to include it in this model?

The four-wheel steering system in the Audi A7 allows for improved handling and stability, especially at high speeds and tight turns. It also offers better precision and control while driving, giving you a more enjoyable and responsive driving experience.