Mick Schumacher was handed his first track day with McLaren at Portimao on Wednesday, a scheduled outing that was part of the team's reserve driver arrangements with Mercedes.
Schumacher - who was left without a seat at the end of last season following the Haas' team's decision not to extend the German driver's contract - is the Brackley squad's official substitute this year for Lewis Hamilton and George Russell.
However, as a Mercedes customer team, McLaren has access to Schumacher while it also has current IndyCar championship leader Alex Palou on its books as a potential reserve.
On Wednesday in Portugal, Schumacher was at the wheel of a 2021-spec McLaren MCL35M.
In a post on social media, McLaren said the test at Portimao was also an opportunity for the team's mechanic and engineering apprentices and interns to gain "valuable experience working in a trackside environment".
Schumacher will be in the UK on Thursday to prepare with Mercedes for next weekend's British Grand Prix at Silverstone.
A European races, Mercedes relies on the 24-year-old to help with set-up work in the outfit's simulator in Brackley on Friday evenings after the team's opening day of running at a venue to help fine-tune the car for Hamilton and Russell.
In Barcelona last month, both Mercedes drivers praised Schumacher for his contribution and ground work on race weekends.
Keep up to date with all the F1 news via Facebook and Twitter
Helmut Marko believes that Red Bull and Max Verstappen are unlikely to challenge for victory…
Automotive giant General Motors is reportedly back in the game as a potential entrant in…
The opening day of running at the Las Vegas GP was a smooth but chilly…
Williams is continuing to fight uphill battles this weekend in Las Vegas as a knock-on…
It was a solid start to the Las Vegas weekend for Ferrari with Carlos Sainz…
Lando Norris didn’t hold back in his assessment of McLaren’s performance on the opening day…