What is the best way to improve the fuel efficiency of an Audi?

I recently purchased an Audi and I want to reduce my carbon footprint. However, I also want to avoid any adverse effects on my car's performance. How can I improve its fuel efficiency without sacrificing power?

Use cruise control when driving on highways and avoid abrupt acceleration or deceleration. It can also be helpful to keep your tires properly inflated and avoid excess weight in the vehicle. I've found that following these steps have significantly increased my Audi's gas mileage.