gran turismo 5 is week in america and strong in emeaa like gran turismo 4
gran turismo 5 sold more in emeaa than gran turismo 4 so it should sold better (7m) and i exept gran turismo 5 to sold (2 m) in america (gran turismo 4 was 2.9 m) and 0.85 million in japan
so i think gran turismo 5 will sold 10 million
PS4 - over 100 millions let's say 120m
Xbox One - 70m
Wii U - 25m
Vita - 15m if it will not get Final Fantasy Kingdoms Heart and Monster Hunter 20m otherwise
3DS - 80m