GT sport is neither unfinished or buggy. It has bugs, all games have bugs, but a buggy game is a game that is literally bug riddled to the point of significantly hindering gameplay and are generally noticed by any one who has played the game for a few hours ( Skyrim, Both Project cars, Mass effect andromeda, Fall out etc ) Unfinished means the game is, well unfinished! It was released too early and had significant portions of content cut or has features that don't work/ never implemented. Examples of unfinished games are relatively rare, but a great example would be MGSV and No man's sky.
Now if you guys stated GTS had little content RELATIVE to other major titles, I would agree. If you said GT sport has a few pestering bugs that need to be squashed, I agree! Or heck that GT needs to improve its physics system I agree
But buggy and unfinished.. ha okay then. By that logic any sequel with less content than its predecessor is unfinished and any game with bugs is buggy. Also, physics flaws are not bugs.