Ferrari's Charles Leclerc clocked in with the equivalent of two race distances under his belt after concluding on Thursday his work session with Pirelli at the Circuit Paul Ricard.
The Scuderia's new recruit, who will race alongside Sebastian Vettel at the Italian outfit next season, raked in 129 laps onboard Ferrari's SF71-H as he put Pirelli's 2019 compounds through their paces.
Mercedes' Valtteri Bottas was behind the wheel of the German team's W09, adding to the data as he completed a total of 102 laps around Paul Ricard.
The purpose of the two-day test is to validate next season's tyre range as Pirelli completes its 2019 development programme.
As is customary, both teams were purposefully kept in the dark as to the exact specifications of the rubber they were running.
The programme resumed this morning, with four-time world champion Sebastian Vettel taking over from Leclerc at Ferrari while Bottas continued his work with Mercedes.
Gallery: The beautiful wives and girlfriends of F1 drivers
Keep up to date with all the F1 news via Facebook and Twitter
Sebastian Montoya, the 19-year-old son of former Formula 1 star Juan Pablo Montoya, is set…
When former Ferrari team principal Mattia Binotto took on the role of Chief Operating Officer…
Charles Leclerc concluded the 2024 F1 season with a sense of satisfaction, the Ferrari driver…
Former Formula 1 driver David Coulthard has voiced his dismay at FIA president Mohammed Ben…
Super Aguri's application to join Formula 1 became a reality on this day in 2005,…
Ferrari roared back into contention in 2024 to deliver their strongest season in years, thanks…