Under normal circumstances I would give 5 stars for this work. Even if it might not be accurate with the corner camber or other stuff. It looks gorgeous. Very detailed. Great atmosphere.
But this track is totally unoptimized. On my PC I cant play it. Ok you could say its a potatoe. It might be but the original tracks and all modded tracks from the professional AC modders run with high FPS on my machine.
So, see this missing star as motivation to improve the performance of the track.