What is the main difference between an Audi 80 and an Audi 90?

Looking to purchase an older Audi model and deciding between the 80 and 90. What sets these two apart from each other?

The main difference between the Audi 80 and Audi 90 lies in their engines. The Audi 80 was equipped with a 2.0-liter engine, while the Audi 90 came with a 2.3-liter engine.

Another key difference between these models is in their suspension. The Audi 80 has a simpler, standard suspension system, while the Audi 90 offers the option for a more advanced sport suspension.