Charles Leclerc led Lewis Hamilton in a Ferrari 1-2 during opening practice for the Italian Grand Prix at Monza, a circuit in northern Italy near Milan, on Friday.
Leclerc set the fastest lap of the session at one minute and 23.008 seconds, finishing 0.173 seconds ahead of his teammate Hamilton. Mercedes driver George Russell placed third, three-tenths of a second off the pace.
Leclerc and Hamilton drove the session in a special one-off livery marking 30 years since Michael Schumacher joined Ferrari in 1996.
The design is inspired by the Ferrari F310, the car Schumacher raced in his first season with the team, when he claimed three wins including Ferrari's first Italian Grand Prix victory since 1988.
Schumacher went on to win at Monza five times for Ferrari, in 1996, 1998, 2000, 2003 and 2006, before leaving the team in 2006 having taken 72 race wins and five drivers' championships in Ferrari colors.
Ferrari also brought three cars from Schumacher's career to Monza for the weekend, including the 1996 F310 and the 2002 F2002, the latter to be driven by his former teammate Rubens Barrichello during a demonstration session.
Mercedes driver Kimi Antonelli, the championship leader, placed fifth in the session. McLaren's Lando Norris finished ahead of teammate Oscar Piastri, who was 11th.
Ferrari's session featured upgraded engines. Hamilton is looking to capitalize on a grid penalty that will see Antonelli start the race from the back of the field.
Hamilton and Russell trail Antonelli by 59 points in the drivers' championship and could narrow that gap significantly if Antonelli fails to score heavily on Sunday.
Four rookie drivers took part in the session: Ayumu Iwasa deputized for Max Verstappen at Red Bull, Luke Browning stood in for Alex Albon at Williams, Paul Aron replaced Pierre Gasly at Alpine, and Colton Herta drove in place of Sergio Perez at Cadillac.
During the session, the International Court of Appeal announced its ruling on the Monaco Grand Prix result, with McLaren and Red Bull succeeding in their appeal.
The decision reinstated post-race penalties against Gasly, who had been promoted to third place following a separate appeal by Alpine. Isack Hadjar was elevated to third in the revised result, while Gasly returned to his original finishing position of seventh.
Monza, nicknamed the "Temple of Speed," is one of the oldest circuits still on the Formula 1 calendar and traditionally draws large crowds of Ferrari supporters known as the "tifosi" for the team's home race.