<prompt> Pedzisa mutsara unotevera: 2015 Bahrain GP2 Series round ndiyo yaive yekutanga yezviitiko gumi nerimwe zvakarongwa muna 2015. Yakaitwa musi wa18 na19 Kubvumbi 2015 kuBahrain International Circuit muSakhir, uye yakamhanya ichitsigira iyo  <response>: 2015 Bahrain Grand Prix. Iyo drag yekudzikisa system DRS yaive nenzvimbo mbiri dzekumisikidza mujaho: imwe yaive paKutanga yekupedzisa yakatwasuka ichibatanidza yekupedzisira uye yekutanga makona, uye yechipiri pane yakatwasuka kubva pagumi negumi nerimwe. Mutengesi wetayera Pirelli akaunza marudzi maviri etayera kumakwikwi: maviri akaoma musanganiswa nyoro sarudzo uye yepakati primes. 