Cars are becoming more streamlined and minimalist. We have seen approval for vehicles without steering wheel or pedals in an effort to make cars with increased autonomy. But now carmakers have designed a car without conventional brake discs – and all of this is part of a larger effort to reduce carbon emissions.

Over the weekend, a French carmaker DS CarsCitroen’s luxury arm has released a prototype of the DS E-TENSE, which uses only electric regenerative brakes.

How does regenerative arrest work?