What is Audi e-Tron's regenerative braking system?

I've heard that the Audi e-Tron has a regenerative braking system. What exactly is that and how does it work?

Yes, the Audi e-Tron does indeed have a regenerative braking system. Essentially, this means that when you brake, the electric motor converts the kinetic energy of the vehicle into electrical energy which is then stored in the battery for later use. This not only helps improve the overall efficiency of the vehicle, but also increases its range.