The people bashing this saying it doesn't look much better than gt6 are the same people who talked shit about uncharted 4 visuals when they showed the first gameplay demo at psx 2013. Basically their opinion is irrelevant.
This is a phenomenal improvement and the great news is the final version will be better. I still think sport is effectively a prologue to GT7 but they didn't name it that so it would sell more. clever idea if true.