Ross Brawn credits the aim of F1 moving to fully sustainable fuels to seeing Audi and Porsche register their interest in joining the sport. It has long been known that the two German marques have been involved in discussions surrounding the new power unit formula to come into Formula 1 from the 2026 season, be it through entering as a constructor or power unit manufacturer. Brawn and Formula 1 have set out their targets for making the sport more sustainable in the next few seasons, which includes a plan to move to a carbon-neutral fuel to power the new engines. And the former Ferrari team principal said that element of the discussions are part of what is piquing Audi and Porsche's...
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