Pilots drive their cars during a lap at the Formula E Grand Prix on the street circuit in the city of Buenos Aires, Argentina, on Feb. 18, 2017. The Buenos Aires Formula E Grand Prix of the International Federation of Motor Racing (FIA), is a tournament of single-seater cars characterized by their electric motors. Twenty pilots ran at more than 200km per hour on the street circuit located in Puerto Madero. (Xinhua/Martin Zabala)