British driver Sam Bird (C) of DS Virgin team, celebrates with Swiss Sebastien Buemi (L) of Renault e.Dams team and Brazilian Lucas Di Grassi (R) of ABT Schaeffler team during the award ceremony of 2016 FIA Formula E Buenos Aires ePrix, in Buenos Aires, Argentina, on Feb. 6, 2016. Sam Bird claimed the title with 45:28.385.(Xinhua/Martin Zabala)  

British driver Sam Bird (C) of DS Virgin team, celebrates with co-worker after 2016 FIA Formula E Buenos Aires ePrix, in Buenos Aires, Argentina, on Feb. 6, 2016. Sam Bird claimed the title with 45:28.385. (Xinhua/Martin Zabala)

 British driver Sam Bird (C) of DS Virgin team, celebrates with Swiss Sebastien Buemi (L) of Renault e.Dams team and Brazilian Lucas Di Grassi of ABT Schaeffler team during the award ceremony of 2016 FIA Formula E Buenos Aires ePrix, in Buenos Aires, Argentina, on Feb. 6, 2016. Sam Bird claimed the title with 45:28.385. (Xinhua/Martin Zabala)

British driver Sam Bird of DS Virgin team competes during 2016 FIA Formula E Buenos Aires ePrix, in Buenos Aires, Argentina, on Feb. 6, 2016. Sam Bird claimed the title with 45:28.385. (Xinhua/Martin Zabala)

Drivers compete during the race of 2016 FIA Formula E Buenos Aires ePrix, in Buenos Aires, Argentina, on Feb. 6, 2016. Sam Bird of DS Virgin team claimed the title with 45:28.385. (Xinhua/Martin Zabala)

Drivers compete during the race of 2016 FIA Formula E Buenos Aires ePrix, in Buenos Aires, Argentina, on Feb. 6, 2016. Sam Bird of DS Virgin team claimed the title with 45:28.385. (Xinhua/Martin Zabala)

British driver Sam Bird of DS Virgin team competes during 2016 FIA Formula E Buenos Aires ePrix, in Buenos Aires, Argentina, on Feb. 6, 2016. Sam Bird claimed the title with 45:28.385. (Xinhua/Martin Zabala)