The track in real isn`t that flat, it has little up and downs, especially in turn 1 , turn 4 , turn 9 and turn 11 .
last one goes to a steep curve - here: flat.
This mod is not bad but has a critical problem with the AI path. Almost every car on the pit side of the starting grid will not start the race or will take a very long time to slowly exit this "stall". Furthermore they will often crash on right wall after the starting line, just before the first left turn. Tried and tested the above problems with 3 different cars and classes (road, gt and formulas).