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.
1947 Buenos Aires Grand Prix (II) The second of two 1947 Buenos Aires Grand Prix (official name: I Gran Premio de Eva Duarte Perón, also known as the II Gran Premio Ciudad de Buenos Aires) was a Grand Prix motor race held at the Retiro street circuit in Buenos Aires on February 15–16, 1947. Competitions opened on February 15 with two preliminary rounds of the Mecánica Argentina - Fuerza Limitada and Mecánica Argentina - Fuerza Libre classes for a combined final which determined the qualification for the February 16, Formula Libre main event.