Cars are getting streamlined and minimalist. We’ve seen approval for vehicles without a steering wheel or pedals in the effort to make cars with increased autonomous capabilities. But now, automakers have designed a car without conventional brake discs — and it’s all part of a bigger effort to reduce carbon emissions. Over the weekend, French carmaker DS Automobiles, the luxury arm of Citroen, launched a prototype of the DS E-TENSE, which uses only electric regenerative brakes. How does regenerative braking work? How regenerative braking works. Image: Delphi Autoparts Just a quick refresher. In traditional braking, stepping on a vehicle’s brake pedal causes the…

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