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.
2003 International Formula 3000 Championship The 2003 International Formula 3000 season was the 19th season of FIA Formula 3000 motor racing. It featured the 2003 FIA Formula 3000 International Championship with titles awarded for both Drivers and Teams. The championship was contested over ten events from 19 April to 13 September 2003.