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Gran Turismo PSP — Your Questions Answered – PlayStation.Blog

What took Polyphony Digital so long to release Gran Turismo on the PSP? - Quora

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Gran Turismo 7 Update Coming April 7 – GTPlanet

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Next Gran Turismo 7 Updates Will Fix Credit Payouts, Polyphony Digital Apologizes - GameRevolution

Why are Gran Turismo 7 Fans Outraged? What did Polyphony Digital do to calm the Gran Turismo 7 fans down? - Quora