What is the difference between the Audi 80 and the Audi 100?

I am considering purchasing a used Audi, but I am not sure what the differences are between the Audi 80 and the Audi 100. Can someone please provide some insight?

The main difference between the Audi 80 and the Audi 100 is their size. The Audi 80 is a compact executive car, while the Audi 100 is a mid-size luxury car.

In addition to size, the Audi 100 also has a more powerful engine and includes more advanced features such as a sunroof and leather seats.