Mercedes have let Mick Schumacher drive the W14 for the first time around the Circuit de Barcelona-Catalunya, as part of a Pirelli tyre test.
Pirelli are staging in-season tests following the Spanish Grand Prix this week as part of their evaluation of tyres being used without blankets.
The test is critical to a decision being made on whether blankets will be banned from 2024, with just one test post-British GP left.
Schumacher will be gathering valuable data for Pirelli and providing Mercedes with information on his development and feedback.
"Mick has done a great job with the team so far, working hard back in the simulator and giving valuable input trackside," said team boss Toto Wolff.
Check out the video of Schumacher below.