McLaren Racing CEO Zak Brown sent a formal letter to FIA President Mohammed Ben Sulayem calling for immediate rule changes to eliminate any future scenario in which a single entity could control multiple Formula 1 teams. The move comes as F1 team valuations have crossed $1 billion for midfield constructors and approached $3 billion for top-tier operations, making ownership consolidation mathematically attractive for the first time in the sport's modern era.

Brown's letter does not name specific parties but arrives six weeks after Ford's announcement of a Red Bull partnership beginning in 2026, which includes shared technical resources and an undisclosed equity component. Two people familiar with the governance review said Brown's concern centers on whether current regulations adequately prevent a manufacturer or private equity group from accumulating controlling stakes across multiple entries through layered corporate structures. The FIA rulebook currently bars direct common ownership but contains no explicit prohibition on shared beneficial ownership below majority thresholds or through intermediary holding companies.

The timing matters for three reasons. First, the $450 million anti-dilution payment required for new entrants, established in 2023, has turned existing grid slots into scarce assets with clear appreciation curves. Second, the Las Vegas Grand Prix generated $1.2 billion in economic impact in its first year, validating Liberty Media's North American expansion thesis and attracting institutional capital unfamiliar with F1's legacy governance norms. Third, at least two current teams are in quiet fundraising processes that involve offering minority stakes to strategic partners who also hold investments in rival constructors' commercial divisions. One team principal, speaking off the record, noted that private equity groups now view F1 teams the way they view regional sports networks: consolidated under common financial control while maintaining operational independence for regulatory compliance.

Brown's letter likely accelerates an FIA governance audit already underway. The sport's Concorde Agreement, renegotiated in 2020, includes conflict-of-interest provisions but relies on self-reporting and lacks the kind of bright-line beneficial ownership caps common in major North American leagues. The NBA, by comparison, prohibits any individual or entity from holding more than 1 percent in a second franchise. F1 has no equivalent threshold. Mohammed Ben Sulayem's office has scheduled a closed-door session with team principals for the Monaco Grand Prix weekend in late May, according to two people briefed on the agenda. The meeting will address ownership disclosure requirements and potential amendments to the 2026 technical regulations package, which is still open for non-performance-related changes until June 30.

McLaren's institutional position here is not disinterested. The team is majority-owned by Bahrain's Mumtalakat sovereign wealth fund, which has explored partnerships with other Gulf-based investors active in motorsport. Brown's letter establishes a public lobbying position that could box out competitors while preserving flexibility for McLaren's own capital structure. One sponsor advisor noted that Brown is essentially arguing for grandfather rights: existing ownership is fine, future entanglements are not. That framing plays well with legacy teams who view governance stability as a competitive moat against well-capitalized new entrants or consolidators.

The FIA has three realistic options. It can adopt NBA-style bright-line caps, which would require several current stakeholders to divest partial holdings and would likely trigger legal challenges. It can implement enhanced disclosure rules without ownership limits, effectively outsourcing enforcement to sponsor pressure and public scrutiny. Or it can do nothing and let the Concorde Agreement's existing conflict provisions handle disputes case-by-case, which is the path of least resistance but offers no deterrent value. Two people familiar with Ben Sulayem's thinking said he prefers the disclosure route, in part because it avoids immediate confrontation with powerful team owners and in part because it creates a paper trail useful for future enforcement without committing the FIA to a rigid standard it may later regret.

What happens in Monaco will set the template. If Ben Sulayem agrees to draft bright-line rules, expect at least two teams to threaten legal action before the regulatory comment period closes. If he punts to a working group, expect Brown to escalate through media channels, likely with a coordinated push from Alpine and Williams, both of whom have publicly supported stricter ownership transparency. The third scenario—no action—would be the quiet win for Red Bull and any other team whose strategic partners are building multi-team exposure through the kind of corporate layering Brown's letter is designed to prevent.

Watch the May 25 team principal meeting in Monaco, where the FIA will present draft language or signal its preferred enforcement mechanism. Watch Ford's Q2 earnings call on July 24, where analysts are expected to ask about the Red Bull partnership's governance structure. And watch whether McLaren's own investor disclosures, due under Bahrain's sovereign fund reporting rules by September, reveal any new strategic partnerships that would clarify whether Brown is building a moat or just closing a door he has already walked through.