Marina Bay 'No Fluke'
Heading to Austin, the team will look to further strengthen its hold on P2 in the Constructors', with the gap to Ferrari in P3 at 27 points with six races remaining.
Toto said: "We come off the back of a strong result in Singapore, taking victory with George and P5 for Kimi. Not only was that unexpected, our level of performance across Saturday and Sunday showed it was no fluke.
"That has been the story of the season somewhat, where it isn't clear which team will be leading the way from weekend-to-weekend.
"We were also good in Azerbaijan so we are curious to see if we can maintain the step we have made with the W16 into this next run of races across the Americas.
"They are very different layouts and challenges to those two street circuits, so we are heading a little into the unknown, but that unpredictability is what makes our sport so enjoyable."