The sheck of the Mercedes Toto Wolff team fears that in the last four races of the season, the track in Mexico will be the one least likely to match the silver W 10.
Lewis Hamilton, who may already become world champion in Mexico, has recently questioned Mercedes' chances at the Rodriguez Brothers.
His boss Toto Wolff also agrees with the British:
It's certainly not going to be easy in the last four races, and probably the track in Mexico on paper is the worst for Mercedes. It is a combination of various factors such as long planes, high altitude and lack of fast bends, which does not suit our car. Nevertheless, we will do our best and the fact is that Ferrari will be hard to beat here.