Why does the 2021 Audi A6 have a mild hybrid system?

I'm considering buying the Audi A6, but I'm not sure if the mild hybrid system is worth the extra cost. Can someone explain the benefits of this feature and how it affects the overall performance of the car?

The mild hybrid system in the 2021 Audi A6 is designed to increase fuel efficiency and reduce emissions. It uses a small electric motor to assist the gasoline engine, resulting in better fuel economy and lower exhaust emissions.

One of the main benefits of the mild hybrid system in the Audi A6 is the increased power and torque it provides. This translates to a smoother and more responsive driving experience, especially in stop-and-go traffic.