Billy Monger headlines the Valencia FIA Formula 3 post-season test entry, as Formula 1 juniors from Ferrari, Renault and Red Bull will all take part over the next three days.
Monger has been keen to race in FIA F3 since returning to racing following the 2017 British Formula 4 crash in 2017 that led to the amputation of his legs, but due to a lack of budget he competed initially in BRDC British F3 and then this year in Euroformula Open - where he won the Pau Grand Prix.
Monger will have to run with a special technical set-up to drive the Carlin-run car, but no information has been provided on whether these changes would receive a special dispensation to run in the championship competitively.
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Carlin has run him in his other single-seater championships since his return, each time making adaptations to the car involving hand controls.
Dan Ticktum - who will race in Macau in F3 with Carlin next month - is alongside Monger on day one (Sunday) of the three-day test, partnered by German F4 champion Theo Pourchaire.
FIA F3 champion team Prema - which also locked out the top three in the drivers' championship - fields Ferrari F1 junior Enzo Fittipaldi, Formula Regional European champion Frederick Vesti, Aston Martin Autosport BRDC Young Driver of the Year Award finalist Enaam Ahmed, Formula Renault Eurocup leader Oscar Piastri and Logan Sargeant over the three day test.
Aston Martin Autosport BRDC young Driver of the Year finalist Ahmed has been competing in Japanese F3 this year after he struggled to raise the budget for an FIA F3 campaign in 2019.
Red Bull and Honda junior Yuki Tsunoda will lead Hitech Grand Prix's line-up in the team he will contest Macau with next month, switching from the Jenzer operation. Max Fewtrell switches from ART to Hitech for the test and Macau also.
Red Bull junior Jack Doohan - son of motorcycle racing legend Mick - completes Hitech's line-up for day one. He has also spent this season in EF Open.
Jake Hughes and Christian Lundgaard remain in their F3 seats and lead HWA and ART's line-ups respectively.