It's been rumoured that Gran Turismo 6 has been coming to PS3 all weekend, after Sony's Michael Denny was quoted in an article from Silicon Republic saying that this was the case.
To be honest we thought this may be some sort of typo, however after looking into this further we have managed to find a recording of said interview and it's quite clear that Denny did state that GT6 is coming to PS3.
So why would GT6 be coming to PS3 and not PS4? Well for one, Sony has already announced a new driving game for PS4 in the shape of Drive Club. Would it really want to compete with it's own game at launch? Also, think about how huge the PS3 install base is. At over 75 million consoles sold worldwide, does it not make sense to release GT6 on the current console?
No announcement has been made yet of course, however we'd expect Sony to announce that Gran Turismo 6 is on its way at E3 and we only expect it to arrive on PS3. We are sure the PS4 will get its turn in the future.