How does the regenerative braking system work in an Audi A2?

I've heard the Audi A2 has a unique regenerative braking system. Can you explain how it works and if it's better than traditional braking systems?

The Audi A2's regenerative braking system works by converting the kinetic energy of the car into electrical energy, which is then stored in the battery for later use. This is a more efficient way of braking compared to traditional systems as it reduces wear and tear on the brakes and improves fuel efficiency.