According to a third-party research company, GTA 6 has already brought in more than $400 million in revenue from preorders. Sensor Tower’s sales tracker for GTA 6 states that Rockstar sold 4.38 million copies, including any returns, through August 18, generating $429 million. The research firm said the sales mix is 77% PS5 and 23% Xbox Series X|S. This data is not confirmed, but it would not be a surprise to learn that GTA 6 is performing exceptionally well already…