What are the key differences between Audi A6 and A7?

I am interested in purchasing either an Audi A6 or A7, but I'm not sure what sets them apart. Can someone provide a comprehensive comparison of their features and capabilities?

The main difference between the Audi A6 and A7 is their body style. The A6 is a traditional sedan while the A7 is a sleek, sportback design. Additionally, the A7 offers more cargo space and a slightly higher price point.

Both the Audi A6 and A7 are known for their luxurious interiors, advanced technology, and smooth performance. However, the A7 has a more powerful engine option and a more sporty driving experience.

While both the Audi A6 and A7 have similar standard features, the A7 comes with a more advanced multi-media interface with a dual touch screen and handwriting recognition. It also has a more modern, sleek exterior design.