How does the Audi A8's hybrid powertrain work?

I am interested in learning more about the Audi A8's hybrid powertrain. Can someone provide an in-depth explanation of how it works and what benefits it offers?

The Audi A8 uses a combination of electric motors and a traditional gasoline engine to power the vehicle. This hybrid system allows for improved fuel efficiency and reduced emissions compared to a purely gasoline-powered car. As for how it works, the electric motor can power the car on its own at low speeds, while the gasoline engine kicks in at higher speeds or when more power is needed.