Huge mistake from Sony to release this game during the time in 2013 when PS4 launched.
If you ask me the game should have never been called Gran Turismo 6, it should have been a release on PS Vita and it should have been called Gran Turismo Vita. The game and especially PS Vita would have got much more attention during holidays 2013 if this had happened. Maybe this game would have changed the whole PS Vita situation? I mean the franchise is big enough.