Kimi Antonelli urges Mercedes to fix costly reliability issues

Antonelli demands Mercedes response after Barcelona retirement

Kimi Antonelli has called on Mercedes to address the reliability problems that damaged his Formula 1 title challenge at the Barcelona-Catalunya Grand Prix, after a late issue forced his W17 to grind to a halt in the closing stages.

The setback proved especially costly because Lewis Hamilton, Antonelli’s nearest rival in the standings, won the race and reduced the Italian’s championship advantage to 41 points. In a title fight now shaped by fine margins, the Barcelona retirement was more than a bad result; it was a warning that Mercedes cannot afford repeated failures while Ferrari continues to apply pressure.

Antonelli’s stoppage also carried an uncomfortable echo of George Russell’s problem in Canada, where his Mercedes team-mate stopped on track during the race. That pattern has sharpened the focus on a weakness the championship leader believes must be dealt with quickly.

“Of course, it’s very disappointing, but these things happen,” Antonelli told media, including Motorsport Week. “It happened to George in Canada; it happened to me this time. It’s definitely something we need to work on as a team, because it’s important points that we lost.”

Strong power unit, but reliability concerns remain

Antonelli was careful not to turn the issue into a broad criticism of Mercedes’ performance package. He praised the strength of the power unit and acknowledged the difficulties that can come with a first year of regulation, but he made clear that reliability is not yet where it needs to be.

“These things can happen, especially in the first year of regulation. It’s not always easy to find the perfect reliability,” he said. “I think our PU is incredibly strong, but for sure, reliability is not the best bit. But as I said, these things can happen; it’s no one’s fault. Now, a week of rest and then we’re back in Austria.”

Mercedes is expected to bring new parts to Austria, with Antonelli insisting the team remains on a strong development run despite Barcelona feeling like “a little bit of a bump on the road.” The next race now becomes an immediate test of response, particularly with Hamilton’s form becoming harder to ignore. For more on that developing title pressure, read our analysis of Toto Wolff’s view on Hamilton’s growing threat.

Hamilton threat sharpens title pressure

Antonelli admitted Ferrari is in “incredible form” and highlighted both its speed and reliability. That combination is precisely what Mercedes must match if Antonelli is to protect his championship lead.

“We just need to maximise every opportunity that we have,” Antonelli said. “It’s not going to be straightforward, but I’m already looking forward to the next one because I really want to go back to where we left.”

With the season approaching its halfway point, Antonelli still holds the momentum on paper. But reliability is now the variable Mercedes must eliminate before it becomes the defining weakness of his title bid.