Formula E: Pioneering electric race series resumes on streets of Buenos Aires

    By Sarah Holt, CNN

    Updated 1545 GMT (2345 HKT) February 4, 2016

    Buenos Aires hosted round four of the 2015-16 Formula E World Championship.
    Photos: Round 4: Buenos Aires
    Buenos Aires hosted round four of the 2015-16 Formula E World Championship.
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    Green, clean and fast: Formula E is the world's first all-electric racing series.
    Photos: Round 4: Buenos Aires
    Green, clean and fast: Formula E is the world's first all-electric racing series.
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    The #BAePrix is the fourth race of 11 in the 2015/2016 championship and runs through the streets of the Argentinian capital.
    Photos: Round 4: Buenos Aires
    The #BAePrix is the fourth race of 11 in the 2015/2016 championship and runs through the streets of the Argentinian capital.
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    CNN SuperCharged presenter Nicki Shields out on an electric bike in Buenos Aires before Saturday's race. The city has embraced electric transport in recent years.
    Photos: Round 4: Buenos Aires
    CNN SuperCharged presenter Nicki Shields out on an electric bike in Buenos Aires before Saturday's race. The city has embraced electric transport in recent years.
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