How does the introduction of the hybrid engine in the Audi A2 improve its fuel efficiency?

I am interested in learning more about the benefits of the hybrid engine in the Audi A2. Can someone explain how it works and how it improves the car's fuel efficiency?

The hybrid engine in the Audi A2 combines the use of a traditional combustion engine with an electric motor. This allows the car to use less fuel and emit fewer emissions, resulting in improved fuel efficiency.

The Audi A2's hybrid engine uses regenerative braking technology, which captures energy from braking and uses it to recharge the car's battery. This helps to reduce the overall fuel consumption of the vehicle.