Sergio Perez has identified the cold temperatures and tricky conditions for the tyres as a potential stumbling block in the Las Vegas Grand Prix as he seeks to secure second in the championship.
The Red Bull driver enters the weekend 32 points clear of Lewis Hamilton, with just 26 remaining after the weekend in the Abu Dhabi finale.
It means that unless Hamilton is able to out-score Perez by seven points or more, the Mexican will wrap up his best-ever finish in the standings - albeit a long way behind runaway champion Max Verstappen.
Las Vegas will feature cold air temperatures owing to the fact the on-track action is set for at least six hours after sunset, with long straights to cool the tyres also factors teams must deal with.
While Perez is confident of completing the job in Nevada, he is wary of the potential for a slip-up.
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"It is no different than before, we just have to do our own thing, and make sure we maximise our next two weekends," Perez told media including RacingNews365 of his approach to securing P2.
"It would be nice to secure it here, because it is the first opportunity we have, but other than that, it is more important that we focus on having a strong finish to the season.
"We have no idea how it is going to be [in Las Vegas], as it is so different to the rest of the year, because of the temperature, then it is all about keeping the tyres in the window and keeping them warm.
"That is going to be the challenge, so it is going to be very different to anything else we've done this year - so I don't think we know how strong we're going to be.
"I feel like we are in a good moment, as a group and as a team.
"We haven't been able to put the results altogether in the last few weekends, but I believe that we are on our way and we are getting a lot closer to our performances from earlier in the season."