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February 26, 2015

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A new all-electric raceccar, the Spark-Renault SRT 01E Formula E, is taken on a demonstration drive by Brazilian Formula One driver Lucas di Grassi on the grounds of Mandalay Bay on Monday, Jan. 6, 2014.

Hannah Dreier/Associated Press

A new all-electric raceccar, the Spark-Renault SRT 01E Formula E, is taken on a demonstration drive by Brazilian Formula One driver Lucas di Grassi on the grounds of Mandalay Bay on Monday, Jan. 6, 2014.