Why is the Audi A5's fuel economy worse than expected?

I recently purchased an Audi A5 and I noticed that its fuel economy is not as good as the advertised numbers. Is there a specific reason for this and how can I improve it?

The Audi A5's fuel economy can be affected by various factors such as driving habits, road conditions, and even weather. To improve your fuel economy, you can try driving at a constant speed, avoiding idling, and making sure your tires are properly inflated.

It's also important to check your air filter and spark plugs regularly. A dirty air filter can significantly decrease your fuel efficiency, while worn out spark plugs can cause your engine to use more fuel. Make sure to replace them when needed.