Audi’s next-gen Formula E racer has a tiny and efficient powertrain

Audi’s latest Formula E car delivers a big boost in efficiency and weight savings, the company announced (as seen by CNET). The E-Tron FE07 shares the same carbon-fiber body, 18-inch Michelin road tires and 52 kWh McLaren battery with other teams. Ho…

via Engadget

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