How to increase the fuel efficiency of an Audi A2?

I recently bought a used Audi A2 and I noticed that it's not as fuel efficient as I expected. Is there anything I can do to improve its fuel efficiency without sacrificing performance or comfort?

Regular maintenance, such as oil changes and replacing air filters, can greatly improve fuel efficiency. Also, make sure your tires are properly inflated and avoid carrying unnecessary weight in your car.

Consider using a high-quality fuel and avoid idling for long periods of time. You can also try keeping a steady speed while driving and avoid rapid acceleration and braking.

Try using cruise control on the highway and avoid rush-hour traffic if possible. And don't forget to keep your car clean to reduce wind resistance!