Early career
Zak O’Sullivan began his motorsport career at the age of eight, honing his racecraft on karting circuits across Europe before returning to the UK to race competitively in 2014.
The Cheltenham-born driver progressed rapidly through the junior ranks, winning the prestigious British Kartmasters Championship before stepping into the Ginetta Junior Championship at just 14 years old.
Zak’s success prompted him to move into single-seaters in 2020, joining Carlin for his debut campaign in the British F4 Championship. He immediately impressed, winning his first event at Donington Park, before taking pole position and a double victory at the following meeting at Brands Hatch. Finishing second in the championship standings, Zak recorded nine wins and a string of podium finishes.
The following year, Zak stepped up to the BRDC British Formula 3 Championship with Carlin and was named a BRDC Superstar, becoming the youngest driver to receive the accolade. He went on to dominate the season, claiming seven victories and podiums, as well as the most pole positions and fastest laps of the season. His performances saw him secure the title by a 164-point margin.
In 2022, Zak was crowned the winner of the prestigious Aston Martin Autosport BRDC Young Driver of the Year Award - following in the footsteps of F1 drivers Lando Norris and George Russell. The London-born driver also competed in FIA Formula 3, joining PREMA for his second campaign in the championship, where he finished as runner-up. O’Sullivan graduated to FIA Formula 2 for the 2024 season, securing two race victories with ART Grand Prix.
2025 brought a change of direction for the youngster, as he joined forces with Kondo Racing for the Japanese Super Formula Championship. Later that year, Zak was signed to the GT 300 team CarGuy, which saw him secure third place in the championship.
After signing with Paysafe Envision in a development role, the Brit gained experience behind-the-wheel of Formula E machinery in various Rookie Tests and Free Practice sessions. Heading into the GEN4 era, O’Sullivan has been promoted to a full-time seat with the Paysafe Envision squad.