Red Bull challenges FIA engine review findings regarding Mercedes advantage

Motorsport.com2 min read • Latest: Jun 17, 2026, 1:08 PM

Last updated Jun 17, 2026

Red Bull challenges FIA engine review findings regarding Mercedes advantage
Summary

Red Bull-Ford Powertrains has expressed its dissatisfaction with the FIA's review of the first Additional Development and Upgrade Opportunities (ADUO) period, which covers races through the Canadian Grand Prix. The FIA informed all manufacturers of the results in Monaco, but a public announcement is pending. Red Bull asserts that no data samples indicate they have an advantage over Mercedes. The situation continues to provoke significant conversations within the Formula 1 paddock, highlighting ongoing concerns about the engine performance metrics. Red Bull's challenge may lead to further discussions or adjustments from the FIA regarding the findings.

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By the Numbers
  • Red Bull is dissatisfied with the FIA's ADUO review results.
  • FIA's announcement to the teams is still pending.
  • No data samples show an advantage for Red Bull over Mercedes.
  • Discussion around engine performance remains a key topic in the paddock.
  • Implications may affect future team strategies and regulations.
Latest Updates
  • 1:08 PMMotorsport.comRed Bull explains FIA engine review: “No data sample indicates an advantage over Mercedes”
  • 1:08 PMYahoo SportsRed Bull explains FIA engine review: “No data sample indicates an advantage over Mercedes”
  • 1:07 PMAutosportWhy Red Bull has challenged FIA’s ADUO verdict: 'No data sample shows us ahead of Mercedes'
What they're saying
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The handling of Formula 1's first Additional Development and Upgrade Opportunities (ADUO) period, covering the races through the Canadian Grand Prix, continues to dominate discussions in the paddock. The FIA informed all manufacturers of the results in Monaco, but a public announcement is still pending. This is because Red Bull-Ford is highly dissatisfied with the initial outcome and has asked ...Keep reading

"

The handling of Formula 1's first Additional Development and Upgrade Opportunities (ADUO) period, covering the races through the Canadian Grand Prix, continues to dominate discussions in the paddock. The FIA informed all manufacturers of the results in Monaco, but a public announcement is still pending. This is because one manufacturer – logically Red Bull-Ford Powertrains – is highly ...Keep reading

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Laurent Mekies clarifies Red Bull is not opposed to the way ADUO is structured, but says there is “no single data sample” indicating it has a better internal combustion engine than Mercedes

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