I can't stress enough how good this track is.
First, go watch some Chris Harris drives on Youtube - he raves about this track, and of course does it proud.
Then download this and attempt to drive like him!
This has become my favourite go-to test track for testing cars. You'll have one, you know the typical laptime so will know if a car is going better or worse than before...
And the track, enough elevation changes and interesting corners to 'have another go to get a bit faster'.
I can't comment on the likeness having never been there, but there's enough compression bumps and realism in there that I reckon it's tip top.
A must-have in my opinion
I prefer to reassure you, it is not perfect, it is more fluid, less bumps, there is too much deformation of the road, one of my first projects ,,, poorly optimized ,,, but thank you very much, there will be one day some fixes, but at the moment I'm working on
youtube.com/watch?v=dUgn_KAIuq0