small44 on 14 May 2015
I don't know how releasing a new forza is a surprised,forza is a yearly IP since 2011
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