How to unlock multiplayer in Gran Turismo 7

Gran Turismo 7 Review: 4K Graphics, 420+ Cars, Not Much Innovation

Gran Turismo 7 - Products

Gran Turismo 7 review: the grandaddy of racing games - Polygon

Gran Turismo 7 Update Adds Four-Player Splitscreen Mode

Gran Turismo 7 - Splitscreen Gameplay (PS5 UHD) [4K60FPS]

Split screen isn't fixed? : r/granturismo

Here's hoping GT7 has local split-screen And it would be even nicer if local multiplayer included a full grid to race against! Fingers crossed : r/ granturismo

Gran Turismo 7 Spec 2 Update Launches November 2nd, Adds Four Player Splitscreen on PS5

What are the best 2 player racing games for PS4 (split-screen)? - Quora

Gran Turismo 7' Release Date and Time: When the PS5 Game Unlocks in the United States