Why does the Audi A7 have the Engine Start-Stop feature?

I have noticed that my Audi A7 sometimes turns off the engine when I come to a complete stop. Is this a fuel-saving feature or is it just a coincidence?

The Audi A7 has the Engine Start-Stop feature in order to save fuel and reduce emissions. This feature automatically turns off the engine when the car is at a complete stop and restarts it when the brake pedal is released.

Yes, it is a fuel-saving feature. The Engine Start-Stop system helps reduce fuel consumption and emissions by shutting off the engine when the car is idling for more than a few seconds.