Why does my Audi A2 have a low fuel economy?

I've noticed that my Audi A2 seems to have a lower fuel economy compared to other models. What could be causing this?

One common reason for a decrease in fuel economy in an Audi A2 is due to a dirty air filter. Make sure to regularly clean or replace your air filter to improve your car's gas mileage.

Another possible cause for lower fuel economy is a faulty oxygen sensor. This sensor helps regulate the air and fuel mixture in your engine, so if it's not functioning properly, it can result in a decrease in gas mileage.