E-tron will be the first production EV to receive a by-wire braking system.

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Audi says the E-tron's braking distance is up to 20 percent shorter because of the immediacy of a by-wire setup.

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Audi's E-tron will bow sans QR-code camouflage on September 17.

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Halfway down Pikes Peak, our man Paukert verifies that the Audi E-Tron's brakes are cool to the touch.

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A tablet displayed the prototype E-tron's powertrain and by-wire braking system status in real time. 

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Audi's Dr. Michael Wein walks our author through the finer points of the E-tron's by-wire brake system.

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Kinetic energy is recovered via the E-Tron's asynchronous electric motors.

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A set of steering wheel paddles allow the driver to select how much regen braking he or she prefers.

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Audi claims that the regen system is active in over 90 percent of typical daily braking scenarios, recuperating up to 0.3 g using the motors alone.

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Despite its conventional crossover shape, there appears to be a quiet revolution going on underneath the skin of the E-tron.

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This isn't a bunch of dudes playing RoboRaid, it's a HoloLens walkthrough of the E-tron's brakes. 

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Over the course of our descent down Pikes Peak Highway -- all 12.4 miles and 156 turns worth -- my test vehicle's regenerative braking system actually added 6.8 kWh to the battery pack. 

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Keep clicking or scrolling for more images of the Audi E-tron tackling Colorado's legendary Pikes Peak.

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