How does the Audi A7 utilize its mild hybrid technology to improve fuel efficiency?

I've heard that the Audi A7 has a mild hybrid system, but how exactly does it work and is it worth the price?

The Audi A7 uses its mild hybrid system to improve fuel economy by providing additional torque during acceleration and by automatically shutting off the engine during stop-and-go traffic. It may seem like a small improvement, but it can make a big difference in the long run.

As someone who has owned an Audi A7 for over a year now, I can tell you that the mild hybrid system is definitely worth the extra cost. Not only does it save me money on gas, but it also adds a bit of extra oomph to the already powerful engine.