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.
2001 FIA Sportscar Championship The 2001 FIA Sportscar Championship was the first season of FIA Sportscar Championship motor racing, a continuation of the previously named Sports Racing World Cup. It was open to prototype Sportscars competing in two classes based on power and weight, called SR1 and SR2. It began on April 8, 2001 and ended September 16, 2001 after eight races. Separate championship titles were awarded for Drivers, Constructors and Teams in both classes.