
Blow for Red Bull as FIA reveals results of second F1 ADUO engine review
FIA's ADUO review confirms Red Bull misses out on development tokens, while Mercedes, Ferrari, Honda, Audi gain some.
- FIA revealed results of the first and second ADUO review periods for F1 engines.
- Red Bull is officially named F1's best engine but will not receive additional development tokens.
- Mercedes, Ferrari, Honda, and Audi received tokens in the first period but none in the second.
F1's governing body the FIA has published its findings after the second ADUO period.
Coverage timeline · 6 sources
Reported
Official — confirmed directly by an official series or governing-body source.
Reported — written as settled fact by the outlets covering it, without an official source directly.
Unconfirmed — the wording hedges (reportedly, could, linked with), so treat it as a claim, not a fact.
Based on each outlet's official status and how firmly their headlines are worded.
The strongest sourcing here is Crash.net, Motorsport.com, Autosport and Motorsport Week, a first-tier outlet - the tier that generally does its own reporting.
6 independent outlets are carrying this: Crash.net, Motorsport.com, Autosport, The Race, PlanetF1, Motorsport Week.
| Order | Source | Trust | Posted | Vs. first report |
|---|---|---|---|---|
| 1st | Top-tier | 2 hrs ago | First | |
| 2nd | Top-tier | 2 hrs ago | +2 min | |
| 3rd | Top-tier | 2 hrs ago | +2 min | |
| 4th | Mid-tier | 2 hrs ago | +24 min | |
| 5th | Lower-tier | 2 hrs ago | +26 min | |
| 6th | Top-tier | 1 hr ago | +55 min |
Where sources differ: Autosport reports Red Bull will miss out on development tokens after the first two ADUO periods.






