P1racenews AI automatic summary:
Mercedes Team Principal Toto Wolff has admitted “we don’t know where are” with 2026 Formula 1 engine development.
In 2026, new power unit regulations will be introduced in F1, with a focus on sustainable fuels and a 50/50 power split between electric and internal combustion engines. Mercedes is expected to be a front-runner in the new regulations, but team principal Wolff remains cautious about their prospects. Mercedes will supply engines to four teams, including McLaren and Williams, while Aston Martin will no longer be a customer, with Alpine joining as a new customer team. Ferrari will continue partnerships with Haas and Cadillac, while Sauber will become a factory Audi team with a new PU developed in Neuburg, Germany. Red Bull’s powertrains division will supply engines for both Red Bull and Racing Bulls starting in 2026. Russell expressed confidence in Mercedes High Performance Powertrains’ progress and experience, citing success in 2014, Formula E, and the AMG ONE hypercar as strengths for the new era.
