TWRoO on 28 April 2008
GTAIV combined I think is pretty much assured to outsell MarioKart.
However there is no way even the better selling version of GTA will outsell it alone (not sure which will be the best in the end, I would bet on PS3 version which as an absolute maximum might sell 11 million (more like 9) wheras MK Wii is sure to sell 10 million, possibly 15)
