Buenos Aires hosted round four of the 2015-16 Formula E World Championship.
Green, clean and fast: Formula E is the world's first all-electric racing series.
The #BAePrix is the fourth race of 11 in the 2015/2016 championship and runs through the streets of the Argentinian capital.
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.