I notice you’ve asked for a review of "Gran Turismo 8" — but as of my latest knowledge, by Polyphony Digital or Sony.
The most recent mainline entry is Gran Turismo 7 (released March 2022), followed by the Gran Turismo 7 Spec II update (November 2023). Any "GT8" content online is either fan speculation, rumor, or mislabeled. gran turismo 8