I used to "meh" Sachsenring. Like, Well it's a good track, but i would choose any other track than this one for a race. That was before this mod. Now it's in my most used without a doubt. It made me love a track i used to have no feeling for, and that is something.
A 5/5, and a thousand thanks for the author of this masterpiece!
The track itself is insanely well made, don't have much else to add to that point, others have said enough already.
Another thing which is really impressive:
Anyone who's ever made a track knows how fiddely CSP can be. Awesome how many features you managed to implement so seemlesly. Nice work!