Cadillac's New Ferrari Power Unit in Baku and the Long File of Checo Pérez

In Baku, during the first free practice session, the Cadillac garage fitted the latest internal combustion power unit supplied by Ferrari into car number 11. The aerodynamics group took the chance to test small changes to the floor and front wing, exactly the kind of tweaks prepared for a street circuit. By the afternoon, most headlines had compressed the whole event into one sentence: Checo Pérez will race in Baku with a new engine. Anyone who has followed the grid long enough knows that feeling: a technical notice squeezed into a promise.

I open the file before I open the video player. That habit was formed over years of reading scouting reports at academies, and it does not distinguish between sports. A new component fitted to a car says nothing about performance; the fact that it sits inside a schedule drawn up months earlier is the detail worth keeping. I want to separate the news from the storytelling before going further.

Cadillac is a 2026 debutant, backed by General Motors, and in its first season it runs a customer power unit bought from Ferrari. That position places the team structurally at the back of the grid, regardless of the media story built around it. Team principal Marcin Budkowski confirmed the new power unit had already been announced at the Spanish Grand Prix and remains in line with the plan set at the start of the season. He added that the run of consecutive races outside Europe places considerable pressure on the operations side: logistics, staffing, scheduling.

Baku has its own character. It is a street circuit with close walls and low grip, but unlike Monaco it features long full-throttle straights and extremely heavy braking zones. An aerodynamic package optimised for Monaco is not automatically effective here, and the reverse holds too. Cadillac bringing a few small changes is therefore technically reasonable. What I lack is data: no lap times, no downforce figures, no power output. All I have is the team's own words.

The only hard data in this story sits on the driver's side. Pérez's Baku record includes two wins, one sprint victory, and the strongest set of results among currently active drivers. His non-finishes there all stemmed from other drivers' collisions. This is what analysts call driver-circuit affinity: a real, measurable effect that repeats across seasons.

Every sediment layer tells a story, if only we are willing to dig. With Pérez, that layer is thicker than any other driver's when Baku alone is counted. But the record also states something else: the machinery he drove when he won here belonged to a midfield operation capable of scoring points, not a brand-new entrant. The driver is the same, the circuit is the same, and the car has changed entirely.

Street circuits compress performance gaps. Walls punish mistakes quickly, and safety cars bunch the field, erasing leads that stronger teams have carefully built. For a debutant running a customer engine, this is the type of venue that offers the most realistic opportunity. Cadillac's strategy therefore does not rest on outrunning works teams, but on being present when the cars ahead run into trouble. That approach is sensible in probability terms, though it guarantees nothing.

I have spent years reading reports on young footballers, where one good match is never enough to conclude anything and one good season is not proof either. Racing power units are no different: a new component in a single practice session says nothing about its true pace. I do not trust my eyes; I trust what the file leaves behind. And the file here contains nothing beyond an announcement.

Customer teams rarely out-develop works teams inside the same regulatory cycle, because a works team designs its power unit around its own chassis while a customer team must adapt to what it is given. Ferrari supplies the new specification to Cadillac, and Ferrari uses it too. That is a competitive baseline, not an advantage. The phrase "new engine" in a headline invites readers to picture a decisive upgrade, while the body of the report describes a change that had long been scheduled. The gap between the headline and the text is the point I want to record.

At a wider level, the arrival of an American manufacturer backed by General Motors carries long-term meaning for the North American market and for the power-unit supply chain. A new team buying engines from a works manufacturer is a familiar model, and it usually travels alongside an ambition to build in-house within a few seasons. In the short term, it simply means Cadillac must learn to extract everything from what it has been given.

The "King of Baku" story is compelling and fragile at once. The expectations placed on Pérez here exceed the actual capability of the car he is driving. The paradox is that the very chaos Cadillac is relying on could end its race in a single corner. A street circuit opens a door and remains the easiest place to lose everything. At this stage of his career, Pérez's value to the team lies partly in commercial image and partly in the experience that can guide a new project.

The biggest risk in this story does not sit on the track but in how it is told. When a headline promises a step forward and the body delivers only a scheduled milestone, readers easily draw the wrong conclusion about where the team stands. In the other direction, worshipping data is a trap of its own: without measurements, we should not build tables as though we had them. Old files never die; they simply wait for someone patient enough to read them again. But old files do not exempt us from the duty of verifying the present.

Three signals are worth tracking over the next two days: the pace of the new aerodynamic package across the practice sessions, the governing body's documents on how many power-unit components are permitted this season, and the attrition rate in the race itself. If Cadillac reaches the midfield in qualifying, its story has a foundation. If not, a fine Baku record remains only a memory.

What I want to know after this race is not whether Pérez wins, but whether a debutant running a customer engine can convert street-circuit chaos into points in a repeatable way rather than through a single stroke of luck. That is the data that belongs in next season's report.