Like seemingly every Polyphony Digital game, Gran Turismo Sport has been a long time in coming... but you might not have to wait much longer to give it a spin. Polyphony has announced a Gran Turismo Sport closed beta that will start March 17th for PS4 owners in the US, with other countries following later (European users can find more info here). Just which cars, races and tracks you'll get will "vary" throughout the test, but you'll definitely get a taste for how your Driver Profile (which accounts for your on-track behavior and performance) matches you up with similarly skilled online rivals.