Williams not wedded to Mercedes for 2026 F1 engine supply

Williams currently uses Mercedes PUs but has the option to switch to another partner when the new regulations come in.

In theory, Mercedes might be obliged to part company with one of its three customers as under the 2026 PU regulations a manufacturer can only supply three teams, including its own works outfit, “unless agreed otherwise by the FIA.”

Ferrari will lose Sauber to Audi in 2026 and thus an extra supply will be available from Maranello. 

Renault…