How does the engine of the Audi A5 reduce fuel consumption?

I am looking to purchase an Audi A5 and am curious about its fuel efficiency. What measures does the Audi A5 take to reduce fuel consumption?

The Audi A5 comes equipped with a fuel-efficient turbocharged engine that utilizes direct fuel injection and start-stop system technology.

In addition to its efficient engine, the Audi A5 also has an aerodynamic design that helps to minimize wind resistance and improve overall fuel economy.

The Audi A5 also offers a hybrid option for even greater fuel efficiency, combining the power of a traditional engine with the energy of an electric motor.