Second-generation Formula 4 car, introduced in 2021 and making its racing debut in January 2022, it has already surpassed 500 units produced. This is the car where most young drivers begin their careers after karting, with several top talents having already taken their first steps behind its wheel—such as Andrea Kimi Antonelli, who won both the Italian and ADAC Formula 4 championships in 2022.

The T-421 succeeds the T-014, which defined the first generation of Formula 4. Lightweight and highly educational, it challenges drivers to refine their skills and adapt their driving styles, preparing them for the next steps in the single-seater racing pyramid.