Lando Norris has admitted that he is unsure where McLaren will fall in the pecking order at the upcoming Las Vegas Grand Prix.
McLaren has enjoyed a strong run of form in the second half of the season, picking up nine podiums in the previous 11 races.
Its turnaround in form comes after a disappointing start to the year that saw it struggling towards the rear of the field after it missed development targets with the car.
McLaren showed strong pace last time out in Brazil as Norris challenged Max Verstappen for the lead in the early laps of the race before being forced to settle for second place.
But Norris doesn't believe that his consistent run of podiums will translate into a competitive car in Las Vegas.
“I don’t think we were expecting to be as competitive [in Brazil] as we have been,” Norris told media including RacingNews365.com.
“So we're still surprising ourselves. I gave up on guessing where we're going to be nowadays.
“I mean, probably after Bahrain I didn't want to think of where we're going to be. It comes and goes.
“I think everyone expected Mercedes to be extremely strong [in Brazil] and they were nowhere. [Everyone] expected Ferrari to be a bit more competitive and weren’t, so I think no one really knows.
“Everyone just guesses and presumes but no one knows until we just get on track. So just let's wait and see.