Radical Cup North America closed out its 2026 season this weekend at the Circuit of the Americas (COTA), where a 33-car, four-class field shared the stage with the FIA World Endurance Championship for ...
CORRECTION 1/14/2022: The maker of the Radical SR10 has corrected a figure it initially gave us. Both the EcoBoost engine and the racing-spec six-speed sequential transmission can run for at least 80, ...