What is the Audi A6's fuel efficiency like compared to other luxury sedans?

I'm looking to purchase a new luxury sedan and fuel efficiency is important to me. How does the Audi A6 compare to other options in its class?

The Audi A6 has a fuel efficiency rating of 25 miles per gallon in the city and 34 miles per gallon on the highway. This places it near the higher end of its class, with some models offering even better efficiency. However, it is always recommended to consider a vehicle's overall efficiency and not just its fuel economy, as various other factors such as engine power and vehicle weight can affect a car's performance.