Are there any features that make the Audi A4 efficient in terms of fuel consumption?

I am looking for a car that has good fuel efficiency, and I am considering the Audi A4. Can anyone tell me about any specific features or technologies that help with fuel efficiency in the Audi A4?

Yes, the Audi A4 is equipped with a start-stop system which automatically shuts off the engine when the car is at a full stop, saving fuel consumption. It also has an efficient turbocharged engine that provides more power with less fuel.

The Audi A4 also has an efficient dual-clutch transmission that helps reduce fuel consumption by using two clutches to change gears quickly and smoothly.