Ferrari’s power unit deficit: design flaw or a compromise gone wrong?. Ferrari’s power unit remains under scrutiny as the FIA’s ADUO verdict approaches.

Why Ferrari’s Maranello-built power unit appears to need ADUO intervention

Waiting for the ADUO verdict

“A new championship begins in Miami,” Ferrari team principal Frederic Vasseur had said ahead of the Florida weekend. Unfortunately for the Scuderia boss, the outcome of the Miami Grand Prix did not match those ambitions.

Ferrari introduced what was effectively a heavily revised version of the SF-26, a car that once again confirmed its strengths from both an aerodynamic and mechanical standpoint. However, the progress shown by McLaren and Red Bull proved even more significant than Ferrari’s own step forward, leaving the Maranello team anxiously awaiting the ADUO verdict in the hope of addressing a power unit that appears to be clearly lacking horsepower compared to its rivals.

The latest issue of Autosprint, available on newsstands today, raises a key question: why does Ferrari’s engine need ADUO support in the first place?

“We do not know whether the Ferrari V6 was born somewhat weak due to a design error,” reads the article by Fulvio Solms, “or whether it is the result of an imperfect compromise in the endless tug-of-war between aerodynamicists and engine engineers. Gualtieri’s staff may have conceded too much, but these crucial decisions ultimately fall under the technical director, therefore Loic Serra.”

We recently highlighted the expected timeline for the FIA’s first ADUO evaluation. Only in early June will manufacturers receive the initial verdict, meaning any corrective work would only arrive almost two months later.

That is why the historic Italian weekly described ADUO not as a switch that can simply be flipped, but more like the steering wheel of an oil tanker — something that changes direction slowly rather than instantly.

Another crucial detail will be Ferrari’s classification within the ADUO framework. If the gap to the benchmark power unit exceeds 4%, the Scuderia would be entitled to two development opportunities in 2026 and two more in 2027.

“But we may be counting our chickens before they hatch at Trattoria La Concorde,” Autosprint added with a touch of irony. “So let’s wait for the FIA’s conclusions.”

As the 2026 season reaches a critical juncture, Ferrari’s ability to bridge the horsepower gap will define their championship aspirations. While the chassis remains competitive, the looming FIA decision on engine equalization represents a pivotal moment for Loic Serra and the entire technical department. Navigating these complex regulatory waters is now as vital as the performance found on the track, as the team looks to transform a “sluggish” start into a sustained title challenge.