What are the key differences between the Audi A6 and A7 models?

I am looking to purchase a new Audi and I am deciding between the A6 and A7 models. What are the main differences between these two models and which one would you recommend?

The Audi A6 and A7 models both offer excellent performance and luxury features, but there are a few key differences you should consider. The A7 has a sleeker, sportier design and offers a more powerful engine option, while the A6 has a more traditional sedan look and a more fuel-efficient engine option. If you want a more stylish and powerful vehicle, go for the A7. If fuel efficiency and a more traditional design are more important to you, the A6 may be a better choice.