What is Audi A5 hybrid engine's fuel efficiency compared to a traditional gasoline engine?

I am considering purchasing the Audi A5 and am curious about the fuel efficiency of its hybrid engine. How does it compare to a traditional gasoline engine and what factors may affect its efficiency?

The Audi A5 hybrid engine has an average fuel efficiency of 40 miles per gallon, which is significantly higher than a traditional gasoline engine. This is due to its ability to switch between electric and gasoline power, optimizing its usage and reducing fuel consumption.

From what I've researched, the Audi A5 hybrid engine has a fuel efficiency that varies based on driving habits and environmental factors such as temperature. It has an estimated range of 29 to 34 miles per gallon in the city and 34 to 38 miles per gallon on the highway.