News: Why Gran Turismo 6 is on PS3, not PS4 - ComputerAndVideoGames.com

The difference between Gran Turismo and GT2 is unbelievable, but they're both on the same platform. The difference between GT3 and GT4 is huge. We're absolutely confident when GT6 comes, you'll see a big step change up from GT5 too. There's still a lot of potential on PS3 that a developer like Polyphony can really exploit.

"And the other factor is that on PS3 we have an install base of 70 million units. On PS4 on launch day we'll have an install base of zero units. There'll be plenty of games to help drive PS4 - not least Drive Club in the racing genre from Evolution Studios, a studio with a fantastic pedigree."