P1racenews AI automatic summary:
Max Verstappen Lewis Hamilton Lando Norris look on as nine rookies take to Mexican GP stage
The session was further complicated by technical issues, resulting in a loss of GPS data for all teams and drivers.
Leclerc set the leading time at the Autodromo Hermano Rodriguez, marking a strong start for Ferrari ahead of the weekend.
Sauber was the exception in terms of rookies due to earlier FP1 sessions.
Several drivers, including Norris, Hamilton, Verstappen, and Russell, closely monitored their replacements during the session.
Nine current F1 drivers had to give up their seats for rookies, as per FIA regulations.
It was an unusual FP1 at the Mexican Grand Prix, with dusty conditions on the rarely used circuit, influenced by high altitude.
Despite pleasant air temperature, track temperatures remained high due to Mexico City’s altitude, requiring special car cooling measures.
