It is impossible to brake on those curbs (especially the last one on the left of the esses), the car is thrown away with excessive loss of control. I have seen in other racing games like iRacing and players can safely go on those curbs without losing control. Why is it not the case in this game? This happens especially with the STEERING WHEEL but even with the controller and with the GT3 cars.
The curbs are poorly made on this track and also that corner I mentioned before is poorly made (I already made a post about this) because in real life there is much more space in that corner than in the game. In the game you are forced onto the curb and you are pushed straight into the grass. In real life there is much more space to turn left.