Why does my Audi A8 have a lower fuel efficiency than advertised?

I recently purchased an Audi A8 and noticed that its advertised fuel efficiency is higher than what I am currently experiencing. I was wondering what could be causing this discrepancy and how I can improve my car's fuel efficiency.

The advertised fuel efficiency of a car is often determined under controlled conditions, so it may not accurately reflect real-life driving situations. However, you can try practicing good driving habits such as avoiding rapid acceleration and maintaining steady speeds to improve fuel efficiency.

Factors such as road conditions, weather, and traffic can also affect your car's fuel efficiency. Consider choosing routes with less traffic and avoiding rough terrain to optimize your car's gas mileage.

Your car's fuel efficiency may also decrease over time due to regular wear and tear. Make sure to keep up with regular maintenance to ensure your car is running at its most efficient level.