17-year-old O’Sullivan finished 11th in the Drivers’ Championship this year for Carlin with 54 points and two podiums – including a spectacular showing on home soil in Silverstone where he claimed his first F3 pole position.
He’ll be partnering Mercedes junior Paul Aron and Formula Regional European Championship by Alpine Champion and Ferrari-backed junior Dino Beganovic, as the Italian team aim to retain their Teams’ Championship title.
"I am really excited to be joining PREMA for the 2023 FIA Formula 3 season,” said O’Sullivan. “It will be a new environment for me, but PREMA's history says all we need to know, so hopefully, we can have a good year together.
“The first impressions in testing were good, and the pace was pretty strong. I was still learning the car as there are a few differences, getting to know all the team and the engineers, and learning some Italian as well!"
O’Sullivan’s single-seater career began in 2019 and has included plenty of success for the British racer. In his first two years racing, he finished second in both the Ginetta Junior Championship and the F4 British Championship.
In 2021, he dominated the field on his way to the GB3 Championship title, racking up seven wins, 14 podiums and five pole positions on his way to glory – earning him a promotion to F3 in 2022 and a spot in the Williams Driver Academy.
Making his debut with PREMA at post-season testing in Jerez, O’Sullivan finished five out of the six sessions inside the top 10, clocking in the third fastest time of Day 2’s morning session.
Team Principal Rene Rosin added: “We are particularly looking forward to working with Zak. We are impressed by what he achieved in his maiden FIA F3 season and his career so far. He will bring in his experience, which is something we always really value, and he already did an outstanding job in post-season testing. That will boost our preparations for 2023, and we are confident we will see Zak thrive in our environment. We are equally delighted to work with the Williams Driver Academy, and we are grateful for the trust they have put into us.”
Cover Image Credit: PREMA Racing