Why does my Audi A5 have poor fuel economy even though it's a newer model?

I recently purchased a 2021 Audi A5 and was expecting to get good gas mileage. However, I've noticed that it doesn't seem to be performing as well as I had hoped. What could be causing this issue?

The aerodynamic design of the new Audi A5 may have improved overall performance, but it can also create drag and decrease fuel efficiency. Consider installing a more aerodynamic grille or underbody panel to improve gas mileage.

Make sure you are using the recommended fuel grade for your Audi A5. Using a higher grade may not necessarily improve performance, but using a lower grade can cause engine knocking and decrease fuel economy.