How do Cadillac intend to solve their overheating issues from Spielberg?

Cadillac arrives at Silverstone hoping to finally unlock the potential of its latest upgrade package after reliability issues overshadowed what had been an encouraging weekend at the Austrian Grand Prix.

The American outfit introduced a significant package of updates at the Red Bull Ring, targeting one of its biggest weaknesses of the 2026 Formula 1 season – tyre management.

Early signs suggested the new components had delivered a step forward, with both cars showing improved competitiveness during qualifying and offering optimism that race pace and tyre degradation would also improve.

However, those hopes quickly disappeared once Sunday's race got underway. As temperatures rose, Cadillac once again encountered the overheating problems that have repeatedly hampered its campaign.

Valtteri Bottas was the first to retire after only a handful of laps when what initially appeared to be a brake fire forced him out of the race. Just a few laps later, Sergio Perez suffered an almost identical failure as overheating brakes brought his race to an early end, condemning Cadillac to its first double retirement of the season.

The result was particularly frustrating given the team's desire to evaluate the effectiveness of its upgrade package over a full race distance.

Ahead of this weekend's British Grand Prix, Bottas revealed that Cadillac has already introduced changes aimed at preventing a repeat of the Austrian problems.

"We've made some modifications to the brake cooling here, but anyway, much lower stress for the brakes on this track, so we should be OK here," Bottas explained.

"But of course we've got to be prepared for the next hot races, potentially Budapest being troublesome. But it's been a big issue, obviously not having finished the last two races. But the team is working as hard as we can to solve these issues, and I'm just going to move on."

Silverstone's high-speed layout places considerably less thermal stress on the braking system than the Red Bull Ring, giving Cadillac reason to be optimistic that the reliability issues seen in Austria may not be repeated this weekend.

Nevertheless, Bottas acknowledged that hotter races later in the calendar, particularly the Hungarian Grand Prix, could once again expose the team's weaknesses unless a permanent solution is found.

Despite the disappointment of Austria, Bottas remains confident that the upgrade package itself represents genuine progress.

"It will, for sure," he said when asked whether the new parts should deliver performance gains at Silverstone.

"You know, we only did two laps of the race, so we couldn't really say anything about the race pace. So let's see here, very different type of track, but yeah, for sure any little upgrade with both the cars so far has been helping. So it should be the same here."

Because both Cadillacs retired before completing meaningful race mileage in Austria, the team was unable to gather enough data to judge whether the updates had delivered the expected improvements in tyre management over a full stint. Silverstone therefore provides the first real opportunity to assess the package under race conditions, provided the reliability concerns have been addressed.