Does sony have a franchise that will sell the PS4 out of the gate

[TheLastStarFighter]

Gran Turismo is Sony's one large mass-appeal franchise. It doesn't have the draw of Halo, and is nowhere near the level of Mario Kart and New Super Mario Bros. So no, Sony doesn't have 1st party software that is at the level of its competitors. In an increasingly multiplatform world this will be a challenge difficult to overcome.