What are the differences between Audi A7 and Audi A6?

I am thinking of buying either an Audi A7 or Audi A6. What are the main differences between these two models in terms of performance, features, and design?

The Audi A7 is a sportier and more luxurious option compared to the A6. It has a more powerful engine, better handling, and more advanced technology features.

On the other hand, the Audi A6 is a more practical and economical choice. It has a spacious interior, improved fuel efficiency, and a lower price point.