McLaren Racing CEO Zak Brown submitted a formal letter to the FIA this week requesting explicit governance clarification on A/B team structures ahead of the 2026 power unit regulations, three days after the team's parent company completed an ownership restructuring that values the racing division at £3.5 billion.
The letter raises competitive fairness concerns around sister-team relationships, particularly Red Bull Racing's operational linkage with Visa Cash App RB (formerly AlphaTauri). Brown did not name specific teams in the submission, but McLaren has publicly criticized Red Bull's shared technical resources, driver development pipeline, and aerodynamic testing coordination since 2022. The timing is precise: FIA technical regulations for 2026 are in final comment period before October ratification, and McLaren now has balance-sheet credibility to force the conversation.
The £3.5bn valuation landed last week when Bahrain's Mumtalakat sovereign wealth fund sold its remaining 15% stake to existing shareholders, completing McLaren's recovery from a $185 million pandemic loan in 2020. The restructuring leaves Ares Management and MSP Sports Capital as primary owners, both U.S. funds with no F1 portfolio conflicts. That clean governance structure gives Brown leverage to push FIA President Mohammed Ben Sulayem on competitive parity without the appearance of self-interest—McLaren does not operate a junior team, does not share wind tunnel time, and runs a single-car technical program.
Red Bull's relationship with VCARB allows the senior team to test components on a second chassis, rotate drivers between cockpits mid-season, and share CFD allocations under interpretations of Article 17.2 of the Sporting Regulations that Brown argues are ambiguous. The FIA permits "customer teams" to purchase powertrains and listed parts, but does not define thresholds for shared intellectual property, personnel movement, or competitive collaboration. Brown's letter requests explicit definitions before 2026, when Audi enters as a works team and Ford partners with Red Bull Powertrains, multiplying the potential for structural gamesmanship.
The complaint matters because McLaren is now capitalized to fight. The £3.5bn valuation implies enterprise value north of $4.3 billion, more than twice the $2bn Andretti Global offered for a grid expansion slot in 2023. Brown can credibly threaten antitrust challenges, sponsor pressure campaigns, or regulatory arbitration in London courts if the FIA delays. He sat two seats from Ben Sulayem at last month's Strategy Group meeting in Geneva, wore McLaren papaya, and brought CFO Neil Houldsworth, a signal that financial remedies are on the table.
The 2026 power unit regulations reset the technical playing field—smaller engines, active aero, sustainable fuels—but governance rules remain 2014 drafts written before Red Bull bought Toro Rosso's naming rights and Haas became a de facto Ferrari development arm. Brown's letter forces the FIA to either codify current practice or ban collaborative structures outright. Neither outcome is neutral: Red Bull will contest any restriction, and Haas cannot survive without Ferrari's technical partnership.
Watch for FIA response by mid-October, before the Sporting Regulations ratification window closes. Brown will attend the October 19 F1 Commission meeting in Paris, and McLaren's outside counsel—Freshfields Bruckhaus Deringer, the same firm that defended Mercedes in the 2021 Abu Dhabi appeal—has already filed amicus paperwork for observer status. Red Bull Team Principal Christian Horner is scheduled to speak at the same session, his first public remarks since the FIA dismissed an internal complaint about his conduct in February.
The £3.5bn number is the tell. McLaren's valuation now exceeds Red Bull Racing's last disclosed worth ($3.8bn in 2022, per Forbes) and positions the team to escalate beyond FIA governance if necessary. Ares Management specializes in distressed credit and private equity litigation; MSP Sports Capital backed DraftKings through New Jersey sports betting court battles. Brown did not hire those backers for their F1 nostalgia.
The complaint filing comes ten weeks before the Las Vegas Grand Prix, where F1 will host its annual sponsor summit and Ben Sulayem will present 2026 technical frameworks to team owners. Brown's letter ensures A/B team governance is now agenda item one, not a sidebar conversation in the Paddock Club.
The takeaway
McLaren's FIA complaint on A/B teams arrives with **£3.5bn** valuation and litigation-ready backers, forcing 2026 governance decisions before October ratification.
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