Cape Town - Mercedes team principal Toto Wolff admits he is not expecting the Silver Arrows to win the Mexican GP as the track doesn't "particularly suit our car".
The Brackley-based squad are already assured of the double as they wrapped up the Constructors' Championship in Japan last time out while Valtteri Bottas is the only man who can catch Lewis Hamilton in the race for the Drivers' title.
Merc, though, are not expecting an easy ride in the final few races and they know they will have their work cut out for them in North American this weekend.
Not only did they fail to win last year, but neither driver made it onto the podium.
"There is no sense of entitlement in this team for future success, so we were quickly back to our usual race preparation routine after Japan," Wolff said.
"We know that the four remaining races are not going to be easy and we expect Mexico to be the most difficult one for us.
"The high altitude of the track brings some fairly unusual challenges as the low air density affects the downforce of the car, the cooling and the engine performance.
"It's a combination that doesn't particularly suit our car, but we will give it everything to try and limit the damage.
"We look forward to the fight and to the amazing Mexican crowd that shares our love for racing and turns the weekend into a brilliant celebration of motorsport."