Cadillac set for first major upgrade package in Miami

Cadillac is banking on taking a decisive step forward in its young Formula 1 journey this weekend, unveiling its first major upgrade package at the Miami Grand Prix –an event that doubles as the team’s first home race and a key early-season benchmark.

After a challenging start to its debut campaign, the American outfit has used the unexpected five-week break – triggered by the cancellation of races in Bahrain and Saudi Arabia – to regroup and accelerate the development of its MAC-26 charger.

Now, in Florida, the results of that effort will finally hit the track.

A wide-reaching upgrade effort

The scale of Cadillac’s update is not being downplayed. Team principal Graeme Lowdon has described the package as both extensive and multifaceted, targeting several key performance areas.

“We’ve got a fairly substantial upgrade package,” Lowdon told reporters.

“It’s spread over different parts of the car. Probably the main areas are the floor, but there’s also some changes on front rear brake drums, front wing as well and lots of bits spread all over the car.

“It’s a mixture of aero and a bit of weight saving as well. It’s reasonably sizeable, but of course the problem is we don’t know what everyone else is doing. So the only that makes a difference is that relative delta. But we’re reasonably hopeful.”

The focus on the floor – still an aerodynamically sensitive component under current regulations – suggests Cadillac is targeting improved downforce efficiency, while weight-saving measures could offer incremental gains across multiple performance metrics.

However, the timing of the upgrade introduces an added layer of complexity. Miami hosts a sprint weekend format, limiting the amount of practice time available for teams to evaluate new components.

“It’s never ideal when you have a fairly substantial upgrade package and it’s a sprint weekend, because you don’t have an awful lot of time to analyse it. With the slightly longer FP1 session, there should be enough,” added Lowdon.

Building foundations under pressure

Beyond the parts themselves, the Miami upgrade represents something deeper for Cadillac: proof that its broader operational structure is beginning to function under the intense demands of Formula 1.

The team has ensured a full suite of components and spares are available trackside, no small feat for a newcomer still building its internal systems.

“It’s tight in some areas. There’s lots of bits to this upgrade, it’s not like a single thing where you make five of them. There’s quite a lot of changes in various areas,” he explained.

“This is our fourth-ever grand prix. Ferrari have done 1,100 and whatever, and even Haas have done 200 and something, being a newer entry on the grid.

“So to bring a fairly substantial upgrade is really encouraging, because what you see at the track is the result from that happening back at our multiple locations elsewhere.

“It’s not just about getting a race team operating, it’s about getting the manufacturing working, all the processes and procedures. Everything from procurement to in-house manufacture. All of these systems are completely brand new.

“So we’ll be watching the performance of the upgrade with great interest, because there’s a lot we need to verify that other teams will already be well down the route of doing.”

• Read also: Cadillac reveals special all-American Miami GP livery

Cadillac currently sits 10th in the constructors’ standings, having largely battled at the back of the field alongside Aston Martin. Its best result so far—a 13th-place finish for Valtteri Bottas in China—highlights the scale of the challenge.

Yet Miami could mark a turning point. With a comprehensive upgrade package finally in play and valuable development time behind them, Cadillac will be looking not just for incremental gains, but for a meaningful step forward in competitiveness.

Whether the improvements translate into immediate results remains uncertain. But for a team still laying its foundations, this weekend represents a critical test—not just of performance, but of progress.

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