Valtteri Bottas believes Williams raced like a "race winning team" in Mexico, an effort that put him third on the podium behind Mercedes.
The Finnish driver started Sunday's 71-lap race sixth on the grid but almost immediately got involved in a battle with the Red Bulls and his team-mate Felipe Massa that would decide the podium.
Bottas survived a scare on lap 23 when he made contact with Kimi Raikkonen. While the Ferrari driver was bounced into retirement, Bottas continued apparently without any damage to his FW37.
He later made the most of a Safety Car restart to get the jump on Daniil Kvyat and take third, a position he would hold through to the chequered flag.
"First of all a big thanks to the team who did a mega job today," said Bottas. "We were racing like a race winning team so I'm really proud of that.
As for his clash with Raikkonen he said: "Obviously it was not an easy race, a bit of contact with Kimi
"But it didn't have to end like that so it was a big shame. I had no where to go but that's racing."
Sunday's podium was Bottas' second of this season and the eighth of his F1 career.