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DRESDEN, GERMANY - MAY 08: Employees work pose for a photo on a Volkswagen e-Golf electric automobile on the assembly line inside the Volkswagen AG (VW) factory on May 8, 2018 in Dresden, Germany. From the beginning of May, the car manufacturer has increased its output and is now producing a total of 72 Volkswagen e-Golf electric cars each day at the factory. (Photo by Jens Schlueter/Getty Images)

DRESDEN, GERMANY - MAY 08: Employees work pose for a photo on a Volkswagen e-Golf electric automobile on the assembly line inside the Volkswagen AG (VW) factory on May 8, 2018 in Dresden, Germany. From the beginning of May, the car manufacturer has increased its output and is now producing a total of 72 Volkswagen e-Golf electric cars each day at the factory. (Photo by Jens Schlueter/Getty Images)

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Wolfsburg, Germany - August 09: An electric car E-Golf in a training workshop at Volkswagen Plant on August 09, 2016 in Wolfsburg, Germany. (Photo by Michael Gottschalk/Photothek via Getty Images)

Wolfsburg, Germany - August 09: An electric car E-Golf in a training workshop at Volkswagen Plant on August 09, 2016 in Wolfsburg, Germany. (Photo by Michael Gottschalk/Photothek via Getty Images)

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Wolfsburg, Germany - August 09: Assembly of VW vehicles Golf 7 and electric car E-Golf in Volkswagen Plant on August 09, 2016 in Wolfsburg, Germany. (Photo by Michael Gottschalk/Photothek via Getty Images)

Wolfsburg, Germany - August 09: Assembly of VW vehicles Golf 7 and electric car E-Golf in Volkswagen Plant on August 09, 2016 in Wolfsburg, Germany. (Photo by Michael Gottschalk/Photothek via Getty Images)

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Wolfsburg, Germany - August 09: Assembly of VW vehicles Golf 7 and electric car E-Golf in Volkswagen Plant on August 09, 2016 in Wolfsburg, Germany. (Photo by Michael Gottschalk/Photothek via Getty Images)

Wolfsburg, Germany - August 09: Assembly of VW vehicles Golf 7 and electric car E-Golf in Volkswagen Plant on August 09, 2016 in Wolfsburg, Germany. (Photo by Michael Gottschalk/Photothek via Getty Images)

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From left to right, Markus Schaefer, head of production at Daimler AG, Dieter Zetsche, chief executive officer of Daimler AG, Angela Merkel, Germany's chancellor, Stanislaw Tillich, prime minister of the state of Saxony, Frank Diess, head of powertrain production at Daimler AG, and Frank Blome, head of Daimler AG subsidiary Deutsche Accumotive GmbH, place their hands on a battery unit during an inauguration ceremony for a new Deutsche Accumotive electric automobile battery factory, operated by Daimler AG, in Kamenz, Germany, on Monday, May 22, 2017. Battery-making gigafactories are about to arrive in Europe, challenging a lead Tesla Inc. is building at a plant in Nevada and opening the way for a quicker shift toward green power for both cars and utilities. Photographer: Krisztian Bocsi/Bloomberg via Getty Images

From left to right, Markus Schaefer, head of production at Daimler AG, Dieter Zetsche, chief executive officer of Daimler AG, Angela Merkel, Germany's chancellor, Stanislaw Tillich, prime minister of the state of Saxony, Frank Diess, head of powertrain production at Daimler AG, and Frank Blome, head of Daimler AG subsidiary Deutsche Accumotive GmbH, place their hands on a battery unit during an inauguration ceremony for a new Deutsche Accumotive electric automobile battery factory, operated by Daimler AG, in Kamenz, Germany, on Monday, May 22, 2017. Battery-making gigafactories are about to arrive in Europe, challenging a lead Tesla Inc. is building at a plant in Nevada and opening the way for a quicker shift toward green power for both cars and utilities. Photographer: Krisztian Bocsi/Bloomberg via Getty Images