How do I optimize the fuel efficiency in my Audi A7?

I have noticed that my Audi A7 has been consuming more fuel than usual. Is there any way to optimize the fuel efficiency in my car?

Regularly check and replace your air filter and spark plugs. This can improve your car's fuel efficiency and overall performance.

Avoid aggressive driving and maintain a steady speed while driving on the highway. This can significantly improve your fuel efficiency.

Make sure your tires are properly inflated. Under-inflated tires can decrease your fuel efficiency.