The opening session in Mexico City was packed with action, featuring a mix of regular championship contenders and a heavy presence of rookie talent:
: Lewis Hamilton finished fifth, within two-tenths of the lead, while Fernando Alonso rounded out the top six. The opening session in Mexico City was packed
: Five rookies took part in the session, including Jack Doohan (Alpine), Logan Sargeant (Williams), Nyck de Vries (Mercedes), and Liam Lawson (AlphaTauri). FP1 Results: Top 10 1 Carlos Sainz 1:20.707 2 Charles Leclerc 3 Sergio Pérez 4 Max Verstappen 5 Lewis Hamilton 6 Fernando Alonso 7 Valtteri Bottas Alfa Romeo 8 Lando Norris 9 Pierre Gasly AlphaTauri 10 Sebastian Vettel Aston Martin The first was caused by Pietro Fittipaldi ,
: The session was interrupted twice by red flags. The first was caused by Pietro Fittipaldi , whose Haas ground to a halt with a power unit failure. The second came late in the session when Liam Lawson 's AlphaTauri suffered a mechanical failure and caught fire in the stadium section, ending the session early. ending the session early.