What is the difference between the Audi A7 Sportback and the Audi A7 S line?

I'm considering purchasing an Audi A7, but I'm not sure what the difference is between the Sportback and S line variants. Can someone explain the differences to me?

The Audi A7 Sportback and S line are both trims of the Audi A7 model, with a few key differences. The Sportback is the base model, while the S line offers a more sporty and aggressive design. The S line also offers upgraded features such as larger wheels, sporty exterior body styling, and a more powerful engine option.