Formula 1 3 Days

Last updated: June 25, 2026, 2:30 PM ET

Formula 1 Power Unit Developments and Regulations

Mercedes is poised to introduce engine fixes in Austria to address reliability issues that led to Kimi Antonelli's retirement in Barcelona. Antonelli detailed the specific cause of his race-ending incident, and the German manufacturer's power unit upgrades are expected to be implemented from this weekend's Grand Prix. Meanwhile, Audi surprised rivals by deploying an upgraded Formula 1 power unit at the Barcelona GP following the FIA's communication of the initial Additional Development and Upgrade Opportunities (ADUO) period results. This comes despite a delay in the broader ADUO implementation, which has allowed Audi and Ferrari to already make engine upgrades. In contrast, Aston Martin's power unit partner Honda will utilize only one of its two allocated upgrade tokens for the 2026 season, opting for a single significant improvement rather than spreading its development resources.

FIA Regulations and Race Incidents

The FIA has declared a Heat Hazard for the Austrian Grand Prix, advising drivers to consider using cooling vests or adding ballast to their cars due to extreme temperatures. The governing body has also ratified a series of rule changes, including a partial restoration of wet-weather Boost Mode for the remainder of the 2026 season, intended to improve safety in damp conditions. Formula 1 teams retain the ability to appeal steward-imposed penalties, provided they can present new, previously unseen evidence to support their case. The ongoing debate surrounding common ownership in Formula, particularly concerning the two Red Bull-affiliated teams, was recently intensified by Toto Wolff's expressed interest in acquiring shares in the Alpine outfit.