Red Bull’s 2026 power-unit row has moved beyond paddock noise and into a fresh FIA data check, with Laurent Mekies making clear the team does not believe the current evidence supports the governing body’s first engine ranking.
The dispute centres on Formula 1’s first Additional Development and Upgrade Opportunities window, better known as ADUO. The mechanism is designed to give the weaker power-unit manufacturers extra development freedom under the new rules, but its first assessment has already created tension because Red Bull-Ford is understood to have been ranked at the top of the internal combustion engine order.
Why Red Bull wants more certainty
Red Bull’s issue is not simply that it has been denied the same level of help as rivals. Mekies has stressed that the team accepts the agreed method of assessing only internal combustion engine performance, even though the tokens can also be used across wider power-unit systems.
The concern is whether the data used to reach the first verdict is robust enough. Red Bull’s position is that it has not seen a data sample proving it holds an advantage over Mercedes, which has been granted one upgrade opportunity while Ferrari, Audi and Honda have each received two.
That matters because the ADUO system can shape more than a single upgrade cycle. As Formula 1’s ADUO flaw has already exposed, a simple ranking method can become awkward when the development permissions are broader than the measurement used to award them.
The politics behind the numbers
Red Bull’s request for further checks is also a political play, but not an empty one. If the FIA confirms the original order, Mercedes would gain a development tool that Red Bull does not have. If Mercedes then uses that token strategically, or saves it until a later assessment, Red Bull could be boxed in by a system designed to close gaps rather than freeze them.
That is the danger Mekies is pointing toward. Red Bull spent the early part of the season defending the legitimacy of its power-unit performance, yet the same verdict that put it top of the ICE ranking could now restrict its ability to respond if Mercedes or Ferrari moves forward.
It also gives fresh context to why Red Bull’s apparent engine win never looked like a complete answer. Straight-line power, hybrid deployment, drivability and race execution are all part of the competitive picture. ADUO only captures one slice of it.
A row the FIA needs to settle quickly
The FIA now needs to show the process is strong enough to survive scrutiny from the teams it affects most. If the governing body changes the ranking after further checks, the credibility of the first assessment takes a hit. If it does not, Red Bull will want a clearer explanation of how the original conclusion was reached.
Either way, the debate is unlikely to disappear before Austria. The power-unit order has already become one of the defining stories of the 2026 rules cycle, sitting alongside Ferrari’s post-Barcelona surge and the questions raised when Red Bull first beat Mercedes in the FIA’s engine verdict.
For a system designed to create competitive fairness, ADUO is learning the hard way that fairness in Formula 1 is never just a spreadsheet calculation.
