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The Pit Wall: F1 Insights, Deep-Dives and Race Intel

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Insights, deep-dives & race intel

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Poster reading it's burning titanium, over a red Ferrari number 44 at speed throwing a shower of orange sparks from under its floor at dusk, with the labels plank starts 10mm and minimum 9mm.

Why Do F1 Cars Spark? The 10mm Rule Behind the Show

The sparks are burning titanium, and they come from a safety device fitted in 1994. Half a millimetre of wear on it has disqualified a driver from a Grand Prix.

Bhavin Lathia· Sep 1, 2026