What is the beginning date of this inaugural season of a new FIA Champoinship for electrically powered cars, in which the Buenos Aires ePrix was first raced?
2014–15 Formula E season The 2014–15 FIA Formula E season was the inaugural season of a new FIA championship for electrically powered cars. It began on 13 September 2014 at Beijing in China and finished on 28 June 2015 in London after eleven races. Nelson Piquet Jr. came first in the overall standings, and so became the first ever Formula E champion.
FIA WTCC Race of Argentina The FIA WTCC Race of Argentina is a round of the World Touring Car Championship, which was held for the first time in the 2013 World Touring Car Championship season at the Autódromo Termas de Río Hondo in Termas de Río Hondo, Argentina.