With the 2025 Formula 1 title decider in Abu Dhabi, the regulatory cycle of the ground-effect cars has come to an end. The regulations introduced in 2022 had three aims: improving racing by allowing drivers to follow each other more closely, closing up the field, and creating a sustainable championship – also financially. As Nikolas Tombazis, FIA’s single-seaters director, looks back, his ... Kee…