Rising American racer Ava Dobson will contest the 2025 GB4 Championship with Arden Motorsport as she bids to kickstart her open-wheel racing career in Europe.

Radford Racing School and Formula 4 United States Championship (F4 U.S.) will once again host the Radford Racing School F4 U.S. “Karts to Cars” Scholarship School, a joint venture that brings together some of the best karters from around North America to get their first experience in a single-seater racecar. The two-day school will take place December 5-6 at Radford Racing School’s multi-track facility in Chandler, Ariz.

Fortec Motorsport will expand their GB4 line-up for the final event of the year at Donington Park on 15-16 October, with the addition of 17-year-old Thai-American Carl Bennett.