See if the sub par in game LOD has been fixed for the build running (more specifically are interiors visable from the outside in gameplay) and do replays use the high LOD that pulls upto the grid.
As for this talk on inaccurate tracks.
That stems from an FOV issue.
From what I have seen in the demo being in car gives a realistic FOV but any other view warps in (and increases sense of speed to boot)
The LOD is much better in the final game. I did not, however, get a chance to check out the replays.
The one thing I really did notice about the full game is that the difficulty of the cars is finally realistic in that race cars take much more concentration to drive fast than say, a BMW M3. Going from a E92 to a F1 GTR to a Diablo GTR, you'll quite clearly see which will take a lot of skill to drive at the limits.
One thing that I've also enjoyed is that lift off oversteer is very well modeled. And again, with the way some cars are more difficult to drive comes to the task of keeping them under control. The M3's easy, the McLaren takes some quick reflexes.
However, with oversteer comes the annoying "barrier", in that every time the car got a little sideways, it was still easy to regain control unless you absolutely pushed it. That was my only main complaint.
Racing on Laguna, Le Mans, & Sebring, I can also say the tracks are very pretty. Laguna is no longer at dusk, and looks a lot better. Sebring also feels more vibrant than before.
And as for the AI, it has gotten ballsy since the demo. I played on custom settings with everything off except ABS (the Diablo I left TCS on). In my Diablo race, I was pitted against a Porsche GT3 race car, HKS Evo, and the Audi RS6 Touring car from FM2, as my main opposition.
During the 2nd lap right before the corkscrew, I could see the Evo & the Porsche battling, bumping into each other. Coming down the turn, the Porsche bumps the Evo off the turn, which lead to it coming back on the road right in front of me...
sideways. Unable to brake completely, I did clip him, and he bumped back into the Porsche. During this time, the RS6 had avoided the Evo & regained speed. And on the last straight to the finish line, I caught the Evo coming up fast, and while trying to pressure him, I didn't see that the RS6 was already next to me, leaving me behind to finish 2nd. But no, the Evo caught my attempt, and cut back over to the other side, leaving me in between both cars finish 3rd.
The whole game, though, is just wow. It's going to be quite an amazing game with gorgeous sounds, well-made interiors (though the F1 GTR seemed to not have its display on), and very, very smart AI who put up a great challenge.