The dazzling cascade of sparks that has become a hallmark of modern Formula 1 cars may soon be less spectacular, as the FIA considers replacing titanium skid blocks with steel to address safety concerns.
Roughly a decade ago, Formula 1 mandated titanium for the skid blocks under the cars to enhance the visual spectacle. "You will see a lot more sparks," the late race director Charlie Whiting said at the time, "which some people think will look a little more spectacular."
The glowing trails, particularly striking at night races, have since become a fan favourite. However, incidents last year in Shanghai, where flying sparks ignited small grass fires trackside during track sessions, raised alarms.
The issue escalated dramatically at Suzuka in 2025, where sparks triggered fires that caused five separate red flag interruptions.
Following last week's F1 Commission meeting, the FIA acknowledged the problem, stating, "It was agreed to investigate both an alternative skid material and potential treatment on some circuits."
Auto Motor und Sport explained the core issue with titanium: while the metal produces vivid, glowing sparks, "they retain heat for a very long time."
The German publication noted, "No one had anticipated that the sparks could set dry grass ablaze."
Steel has emerged as the likely replacement material, a change that could diminish the visual impact of the sparks. Journalist Tobias Gruner remarked, "This means that the sparks that always delight fans, especially at night races, will likely no longer be quite as spectacular."
