What happened: McLaren, Mercedes and Red Bull have formally lodged appeals after stewards restored Pierre Gasly's Monaco Grand Prix podium by cancelling two penalties. The filings open another right-of-review chapter in a case already reshaped by the FIA's handling of pit-lane speed penalties.

Why it matters: The challenge puts pressure on F1's regulatory process because other penalties from Monaco affected race outcomes but were not all reversible in the same way. Gasly's Monaco penalty fight now risks becoming a broader test of consistency for McLaren, Mercedes and Red Bull after the Barcelona-Catalunya weekend.

What to watch: The next step is whether the FIA appeal process accepts new arguments and sets a timetable for review. Any ruling could clarify how far F1 can go in correcting penalties after race results are posted.