Always being very skeptical when there is an 5star hallelujah ranking circuit, because usely its not more then a 3star max. .
But what a track, the moveable cars on the road beside the circuit, the sound in the pit-lane (why nobody is using sounds), 3D spectators ( Why using 2D, its so ugly), the imperfections on objects caused by wear.
Just a small remark, adding a few balloons, track lighting for night driving, more spectators (with jelling sound), remove that ugly 2D tree to further away, tone down the pink&green colors in the tarmac and introduce rain effects. As an Vintagedriver maybe an vintage circuit skin.
Think this an new benchmark for all those track makers, well done.