Why is the Audi A2's fuel efficiency not as good as expected?

I recently purchased an Audi A2 and was expecting it to have exceptional fuel efficiency. However, I've noticed that it's not achieving the advertised numbers. What could be the reason for this?

It's possible that your driving habits may be affecting your fuel efficiency. Try using techniques like accelerating smoothly and avoiding rapid stops and starts.

Another factor could be the type of fuel you're using. Make sure you're using the recommended fuel type for your Audi A2.

Maintenance also plays a significant role in fuel efficiency. Regularly servicing your car and keeping up with any necessary repairs can improve your fuel efficiency.