Software glitch disrupts Malaysian Grand Prix start at Sepang

A huge downpour delayed the start of the Malaysian Grand Prix, and a later start attempt was then abandoned after several cars developed the same problem on the formation lap. Multiple drivers suddenly lost power and the cars slowed to a crawl, with fan footage capturing the moment the issue struck.

Reports identified the cause as a software bug, with FIA single-seater chief Nikolas Tombazis saying a "perfect storm" of conditions triggered the failure. Commentators and drivers described the situation in highly critical terms, while Lewis Hamilton and Max Verstappen compared the spectacle to a "Lego race".

The disruption led to broader criticism of Formula 1's 2026 engine regulations and questions over how the rules were devised. There was also debate over whether it was fair not to penalise affected cars, as drivers said the championship needed to examine what had happened.