Born in Paris, France, the up-and-coming 20-year-old has signed a deal that will see him promoted from F2 to the pinnacle of motorsport, with his future uncertain beyond 2025 thanks to the ever-changing driver dynamic within the Red Bull family.
The French-Algerian racer has now been confirmed as Liam Lawson's replacement at Red Bull's junior F1 team after Lawson himself took over from Sergio Perez at the main team.
Next year, Tsunoda will enter his fifth season with the junior team, a statistic that led some fans to question why the Japanese driver hadn't been chosen to replace Perez given his wealth of experience in F1.
The 24-year-old VCARB star will be partnered by Hadjar, with a tough test ahead given Tsunoda's past form at consistently beating his team-mates.
But who is the 2024 F2 championship runner-up and why do the team think he is the best option to partner Tsunoda for next season?
Early life and career
Hadjar was born in Paris on September 28, 2004, to Algerian parents who were physicians by trade but loved motorsport.
VCARB's newest F1 driver began his karting career at the age of seven after watching F1 as a child and immediately adopted a love of racing.
The 20-year-old competed in karting until 2018 and then progressed to the Ginetta Junior Winter Championship with Elite Motorsport, where he failed to secure a point.
In 2019 however, Hadjar stepped up to single-seater racing in the French F4 Championship, earning his first win after just seven races and finishing the season seventh overall.
In 2021, the young star won in Monaco for the first time whilst racing in FRECA (Formula Regional European Championship) developing healthy rivalries along the way when racing against familiar names such as Paul Aron and Franco Colapinto.
When did Hadjar join Red Bull?
Hadjar finished the 2021 season in FRECA in fifth place before moving on to F3 in 2022, the same year in which he signed to the Red Bull junior driver programme.
He finished his first and only season of F3 fourth in the standings before joining F2 with Hitech initially in 2023 before switching teams for Campos in 2024.
Hadjar has made it to F1 without winning a single championship along the way, despite coming close in F2 this season.
The 20-year-old will now have the opportunity to continue his rivalry with Bortoleto as the Brazilian racer is another of the four drivers from this year's F2 grid to be promoted to F1, Bortoleto signing with Sauber, Hadjar now with VCARB, Kimi Antonelli replacing Lewis Hamilton at Mercedes and Oliver Bearman joining Haas
after impressing during his many replacement driver stints in 2024.