When Gran Turismo 6 was announced as a PS3 game releasing after the PS4 was launched, it was met with surprise. Surely such a key Sony-exclusive IP would make an ideal launch game for a new console. But of course, Gran Turismo 6 had been in development for years and for the PS3’s architecture — a very different machine to the PS4. You also have to consider there’s now 80 million PS3 consoles out there, so a lot more potential for sales than on a brand new machine.Developer Polyphony Digital has since confirmed that there will be no quick conversion of GT6 for release on PS4, instead they are working on Gran Turismo 7 already. And now Gran Turismo creator Kazunori Yamauchi has stated we can expect to be playing the game in 2014 if everything goes to plan.Talking to the BBC’s Top Gear team, Yamauchi said that he really doesn’t want or expect Gran Turismo 7 to take that long, and that a 2014 release was the “best-case scenario.” Coming from Yamauchi and based on his track record, we should probably be expecting a 2015 release then, shouldn’t we?He also said that GT6 really pushes the PS3 to its absolute limit. It will be interesting to do a thorough comparison with GT5 to see what has improved, but if you have a PS3 that is struggling, GT6 may just tip it over the edge.If Gran Turismo 7 sees a release in time for the holidays next year then it will definitely help Sony shift thousands more PS4 units. Gran Turismo is a system seller, and a racing game popular around the world. But Yamauchi and Polyphony Digital are terrible at hitting deadlines, so don’t go holding your breath for the release.