ass is . ▁In ▁November ▁ 2 0 1 2 , ▁the ▁Formula ▁E ▁prom oter ▁and ▁organ iser , ▁Formula ▁E ▁Hold ings , ▁declared ▁that ▁Spark ▁Racing ▁Technology ▁was ▁officially ▁mand ated ▁to ▁design ▁and ▁build ▁all ▁ 4 0 ▁Spark - R en ault ▁S RT _ 0 1 E ▁single - se aters . ▁ ▁S RT 0 1 - e ▁ ▁The ▁car ▁was ▁developed ▁in ▁collaboration ▁with ▁Mc L aren ▁Electron ic ▁Systems , ▁Williams ▁Advanced ▁Engineering , ▁D all ara ▁and ▁Ren ault . ▁In ▁the ▁inaug ural ▁season , ▁all ▁teams ▁ran ▁this ▁car ▁as ▁the ▁series ▁was ▁fully ▁spec . ▁Starting ▁with ▁the ▁ 2 0 1 5 – 1 6 ▁season , ▁teams ▁were ▁allowed ▁to ▁develop ▁their ▁own ▁pow ert ra ins ▁and ▁software ▁with ▁the ▁other ▁parts ▁remaining ▁spec . ▁Teams ▁had ▁the ▁option ▁to ▁revert ▁to ▁Mc L aren ' s ▁" S RT 0 1 - e " ▁pow ert rain ▁from ▁the ▁inaug ural ▁season , ▁which ▁Team ▁Ag uri ▁and ▁A ml in ▁And rett i ▁took ▁advantage ▁of ▁in ▁the ▁ 2 0 1 5 – 1 6 ▁season . ▁Spark ▁updated ▁the ▁ch ass is ▁for ▁the ▁ 2 0 1 6 – 1 7 ▁season , ▁introdu cing ▁a ▁more ▁complex ▁front ▁wing . ▁ ▁The ▁ch ass is ▁was ▁in ▁competition ▁for ▁four ▁seasons ▁( 2 0 1 4 – 1 5 , ▁ 2 0 1 5 – 1 6 , ▁