Well after catching only the first half hour of the livestream and now having watched the rest, I doubt I'll be able to actally read through over 50 pages of everyone's impressions.. (or the many depressions).. I scanned through and clearly, high negativity had to arise and make a game so beautifully presented with staggering amounts of new content, seem like it's all a pile of dung. Typical. This is the first glimpse with a lot more to come people..
What bothers me the most? Well clearly we still have a physics problem as it stands. There's still a magical force that's keeping the car glued to the ground under certain circumstances that would absolutely have a car breaking loose in RL. The drivers.. ya, they were nowhere near as clean and mature as I had hoped, I think a good portion of this community has had far more exciting, pinpoint accurate and highly sportsman like racing online.
The biggest thing is, and I saw a bunch of comments about the tire squeal being too annoying, I personally have been a fan of GT's tire squeal as it's extreamly important to have that slightly overbearing sound relative to RL in a sim, which in my opinion is better than Forza PCars and AC. The problem is, it never ends and during fast changing track chamber or generally quick weight shifts from wrong steering input the cars inherit this F1 downforce ability out of nowhere to keep sticking, moving in this unrealistic rapid left to right / right to left motion, is what's keeping things from being realistic and race with perfect lines and finesse. Right now you can do what you can in GT6 and get away with it. So probably still a tire model issue in short.
Even in GT6 if you pay close attention to how you drive and and how fast you dive into corners, there IS a way to drive a turn perfect and fast without having the tires squeal from start to finish, and driving like that is what would represent how you'd drive in real life. Maybe with new fresh rubber you could pull that off a couple dozen times (or if you've been good on the tires a few corners or extreme breaking when it counts throughout the total tire-life), but again, that's gotta change and would produce much more clean proffessional driving game.
Anywho, a bit of a ramble, I'm am otherwise hyped about the game, lot of wonderful work that's gone into the photomode and the impeccable modelling/lighting throughout... there are clearly stacks of content they're currently working on or have completed we will still see over the next while..