<prompt> Qedela umusho olandelayo: Umjikelezo we-2015 Bahrain GP2 Series waba ngowokuqala kwemicimbi eyishumi nanye ehleliwe ngo-2015. Kwabanjwa ngomhlaka 18 no-19 Ephreli 2015 eBahrain International Circuit eSakhir, futhi kwaqhutshwa ukusekela i-  <response>: I-Grand Prix yaseBahrain ka-2015. Isistimu yokunciphisa i-drag i-DRS yayinezindawo ezimbili zokusebenza emncintiswaneni: eyodwa yayisendaweni yokuqala yokuqeda eqondile ehlanganisa ikona lokugcina nelokuqala, kanti eyesibili iqondile kusuka ekhoneni leshumi nelishumi nanye. Umhlinzeki wamathayi iPirelli waletha izinhlobo ezimbili zamathayi emncintiswaneni: izinhlanganisela ezimbili ezomile izinketho ezithambile kanye namaphrimiyamu aphakathi nendawo. 