Nowgamer: Because kart racing is sooooo 1993
It's no real surprise that Sony decided to drop any kind of number from the title of Gran Turismo's PSP debut and there are a number of good reasons for this. First up, there's the classic reason of not wanting the buyer to think they've somehow missed out on several games in the last few years. Secondly, had it been 'GT4', it'd be aeons too late – had it been 'GT5', it'd be too early. And finally, using either name would be misleading as the all-new handheld-oriented approach makes this very much its own game rather than a mere port. So just Gran Turismo it is then and sure enough, Gran Turismo it is.