Kimi Antonelli Hails “step forward” at United States GP as Mercedes Evaluates Upgrades

Formula 1 championship leader Kimi Antonelli believes Mercedes has made meaningful progress toward unlocking the performance of its recent aerodynamic upgrades during Friday practice at the United States Grand Prix. The Brackley-based squad arrived at Austin’s demanding Circuit of the Americas with a revised front wing configuration, introduced to supplement the major upgrade package originally unveiled in Malaysia two rounds ago. While that aerodynamic overhaul raised the maximum potential of the Mercedes W17, it also created a narrower, more temperamental operating window that the team has been working vigorously to master.

Mercedes Overcomes Friday Morning Balance Struggles

Having run split specifications during the Singapore Grand Prix weekend, Mercedes fitted both Antonelli and teammate George Russell with the updated configuration in Texas to maximize comparative data gathering. However, the opening session underlined the finicky nature of the platform, as both drivers battled severe front locking. The team altered their setup directions ahead of Free Practice 2, prompting an immediate surge in performance. Antonelli capitalized on the changes to finish the afternoon second on the timing sheets, trailing Ferrari pacesetter Charles Leclerc by just 0.042 seconds.

I felt better in the car compared to FP1, Antonelli said. There is still lots of work to do, but it was a good step forward and now we’ll try to improve even further. Having both cars on the same package helps, because we can try lots of different stuff and we can have a better understanding of this package.

The Italian points leader elaborated on the iterative setup work ongoing behind the scenes: Since Singapore we were able to analyse the data and understand better what this package needs. We’re still trying to find how to put the car in the right window, but we’ve been taking steps forward and we’ll see what we can do to improve even more.

Mercedes trackside engineering director Andrew Shovlin detailed the specific technical obstacles the garage encountered during Friday morning’s baseline runs. We didn’t have a good first session. We were looking to explore a wider set-up window with the update package on both cars, but we were struggling with locking, which was a big limitation in both our single-lap work and the long runs, Shovlin stated.

We repositioned the cars going into the afternoon session and that seems to have put us in a better place. We had fewer balance issues, the car was more predictable, and the lap times improved as a result.

Tyre Management and Qualifying Stakes at COTA

Russell faced a messier Free Practice 2, ending the session down in fifth place and seven-tenths adrift of Leclerc after encountering multiple setbacks on Pirelli’s soft compound. His opening flying lap was deleted for a track limits violation, while a violent snap of oversteer through COTA’s ultra-fast first-sector Esses spoiled his secondary simulation.

Long-run simulations indicate a razor-thin spread among Formula 1’s top four outfits, with Red Bull and Ferrari holding a slight edge over Mercedes and McLaren. The primary battleground during Saturday’s qualifying is expected to center on thermal degradation, as drivers struggle to keep rear tyres from overheating before reaching Sector 3.

Mercedes deputy team principal Bradley Lord noted that finding setup harmony is critical to prevent cooking the rear axle: I think it’s just all about keeping the rear tyres in good shape through that twisty bit so that you’ve got the performance in the last corner.

It’s just getting the set-up in the right place and getting the car able to rotate without needing to overuse the rear tyres, overuse the throttle and if we can do that then we should be in good shape, Lord added.

Why This Matters

The United States Grand Prix represents a crucial developmental threshold for Mercedes. Having wrestled with correlation and setup sensitivity since bringing their Malaysia updates, unlocking a broader setup window on a bumpy, high-energy layout like COTA proves the team is turning a corner in race-weekend adaptability.

Austin also marks the earliest mathematical juncture where Antonelli could claim his maiden Formula 1 World Championship. However, the requirements demand an Antonelli victory alongside a Russell finish of ninth or lower and Lewis Hamilton finishing fifth or lower. Because such an outcome hinges on Russell enduring a disastrous race, Mercedes management is refusing to treat the weekend as a coronation opportunity.

Ultimately, for Kimi to win this weekend it means the team’s had a really bad race, because the maths say George needs to be ninth or below, and that isn’t how we want to go racing and the result we’re aiming for, Lord pointed out. So, it’s a very minimal chance, it’s theoretically possible, but in practical terms, this isn’t the match point weekend. We’ll just try and get out there, get as many points as possible and then see when the maths start to come towards us a little bit more.

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