The American driver Alexander Rossi completed a strong and positive second test with Racing Engineering.
The Team was able to set some remarkable laptimes and a third place with Marciello.
Sakhir runs put mileage on new-for-2015 drag-reduction system in Formula One's feeder series.
Japanese Formula Three Champion Nobuharu Matsushita has completed ART's driver line-up in GP2 for the 2015 season.
Austrian set for third full season in Formula One feeder series.