
A new one-year deal for Zhou and exercising a contract extension option for Bottas has left Sauber junior Pourchaire to stay put as reserve driver.
Pourchaire won the German F4 crown, was the 2020 F3 runner-up and ranked second in F2 in 2022. He is poised to seal the 2023 title in Abu Dhabi, leading Mercedes junior Frederik Vesti by 25 points ahead of the finale.