What happened: Lando Norris converted pole into victory at Interlagos, finishing ahead of Max Verstappen and Isack Hadjar. Kimi Antonelli took fifth after a 5-second penalty for an unsafe pit release into Franco Colapinto's path.
Why it matters: Mercedes clinched the constructors' championship over the weekend, its first in five years, yet Norris and Verstappen finished first and second on the day. Luke Smith frames that result as a warning for a tougher 2027 for the Silver Arrows.
By the numbers: Norris led from pole. Antonelli started third and finished fifth, Charles Leclerc started fourth and finished eighth, and Liam Lawson started fifth and finished seventh. Oscar Piastri was sixth, Lewis Hamilton ninth and Nico Hülkenberg tenth.
What to watch: Mercedes will carry the title into 2027 with Norris and Verstappen both showing race-winning pace at the front.