https://twitter.com/AstronautClaire
The 600k is for its first 2 and a half weeks.
UPDATE
VGC Estimates
- Forza Motorsport 4 (X360) - 515,859
- Forza Motorsport 3 (X360) - 481,324
- Forza Horizon 3 (XOne) - 382,089
- Forza Motorsport 5 (XOne) - 325,760
- Forza Motorsport 2 (X360) - 319,212
- Forza Horizon (X360) - 316,820
- Forza Horizon 2 (XOne, X360) - 315,749
- Forza Motorsport 6 (XOne) - 221,042