According to Vgchartz is GT 5:P by far the best selling Prologue.
Let us compare the "small Gran Turismos":
GT5:P 3.19 Mio including downloads even more maybe 4 Mio.
GT4:P 770k
and Gt Concept 2001 was even lower 417k
If we take the GT4 Prologue as indicator then GT5 should sell about 500% more thats 50 Mio GT5
But we all know its impossible but I cant see a reason to be worried infact if Gt5 would just sell 3 times better it would be around 12 Mio and thats almost obscene.
And the poll clearly shows what the people are thinking.
I expect Numbers between 9 Mio and in best case 13 Mio.







