Why does the Audi A7 have a better fuel efficiency compared to other luxury sedans?

I've heard that the Audi A7 has superior fuel efficiency compared to its competitors in the luxury sedan market. What makes it stand out in terms of fuel economy and what factors contribute to its efficiency?

The Audi A7 boasts a lighter body and more aerodynamic design compared to other luxury sedans, resulting in better fuel efficiency. Additionally, the advanced technology in the Quattro system maximizes power distribution and minimizes energy loss.

One key factor is the engine used in the Audi A7. The V6 TFSI engine is not only powerful, but also incorporates efficient features such as a start-stop system and mild hybrid technology. These contribute to its impressive fuel efficiency.