Split screen multiplayer in GT7 is terribly disappointing. P2 is stuck with full assists, can't make the split horizontal so you're stuck racing on a tiny square, limited car selection, no custom
GT SPORT - SPLITSCREEN OFFLINE - YouTube
Online-Vorraussetzung für Gran Turismo 7 – WTF Polyphony… | EarlyGame
Gran Turismo 7: How to Unlock Multiplayer Mode
Gran Turismo Sport is basically an always-online game - Polygon