I've just thought of another reason to be hopeful for this event. Think about what this GT game specifically is trying to do - become an eSport of choice in the racing genre. Therefore, Polyphony should really be impressing the most critical and demanding of players - the professional eSport competitors. The first impressions of this unveiling event need to count. I can't imagine many professional players being too impressed if GT Sport rocks up with obvious and fatal physics flaws. Imagine if iRacing committed the various sins past Forza and GT games are known for, despite their claims of being realistic - things like inaccurate car data, weird physics quirks, inaccurate track layouts, tuning bugs, lack of weather, variable framerate, poor online modes, weak damage...
Polyphony will need to greatly clean up their act if they want to be taken seriously in the eSports world - otherwise they'll come across as sloppy, unprofessional, and just inadequate for the demands of eSports. Maybe casual Joe and Jane off the street won't know or care if the ride height is broken, or if the track isn't laser scanned to pick the smallest imperfections of the road surface, but professional players, professional players used to iRacing, perhaps, will notice. Polyphony will have to work hard to make the game as tight as a drum to really capture the professional audience - just imagine if Counter-Strike: Global Offensive had an uneven, variable framerate, or obvious bugs in the game engine - it just wouldn't work in a professional environment.
