Cadillac F1 are not chasing podiums in Montreal. They are chasing curbs. The American newcomers have confirmed their MAC-26 upgrade package for the Canadian Grand Prix, and the spec list reads like a careful continuation rather than a headline-grabbing leap — new front brake drums, refined diffuser trim and winglets, and a fresh set of front torsion bars designed specifically to help the car ride Circuit Gilles-Villeneuve's notoriously punishing kerbs.
The Canadian package sits on top of a more aggressive Miami upgrade that introduced a revised front wing, floor, diffuser and rear suspension. It was that step, rather than this one, that team principal Graeme Lowdon is still drawing confidence from going into the next round.
"Miami was a very enjoyable weekend," Lowdon said. "This is really encouraging." Coming from a team that has spent its debut season learning how to operate two cars at this level — a job Cadillac's technical director Pat Symonds previously described as "four times as difficult" as running one — the verdict is meaningful even if the result on a Sunday afternoon was not yet headline-grabbing.
Sergio Perez, the more decorated of the team's two drivers, has been openly buoyed by the trajectory. "We had improved pace from the start, and we showed our ability to bring major upgrades that delivered on track," he said of Miami. The bigger ambition was framed conditionally. "If we can do this, I believe we'll be closer to the pack in front."
That is exactly the framework against which the Canadian package needs to be judged. The front brake drums and diffuser tweaks are aimed at the kind of efficiency gains the eye does not see. The torsion bar update, by contrast, is overtly track-specific — a small mechanical change targeted at one of the few circuits where attacking the kerbs is a chassis-by-chassis trial of nerve and stiffness. On a layout where the walls are close and the chicanes punishing, marginal ride-quality gains can show up immediately on a stopwatch.
What Cadillac have not done is overclaim. The team has not put a number on expected lap time. They have not promised points. Lowdon's language has been precise and modest — "encouraging," "flashes of progress" — and Perez has stayed in the conditional tense. Inside a 2026 paddock where every team principal seems to be either promising a quantum leap or apologising for not delivering one, that restraint is its own statement.
The broader story underneath the spec sheet is the year-one fact that Cadillac has now identified a development direction that does not collapse on race day. Their Miami performance suggested an upgrade philosophy with feedback that matched the simulation — a sentence Ferrari, on the same weekend, conspicuously could not write.
Whether Canada delivers a measurable step or not, Cadillac's choice of targets — drums, diffuser, torsion bars — speaks to a programme being built on engineering humility rather than marketing optimism. For a brand that has marketed itself almost entirely on ambition, the discipline of small, correct steps may be the most American story of this F1 season so far.
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*Originally published on [News Formula One](https://newsformula.one/article/cadillac-mac-26-canadian-gp-upgrade-perez-lowdon-front-brake-drums-2026). Visit for full coverage.*
