Only one week since its release, Forza Horizon 4 is already — according to Metacritic — the highest-rated Xbox exclusive title of this console generation while the franchise remains the best-seller in the racing category. During this first week, more than two million players have been driving in Forza Horizon 4's Britain.
https://www.notebookcheck.net/Forza-Horizon-4-hits-2-million-players.337940.0.html