What happened: Formula 1 teams can appeal penalties handed down by the stewards over a race weekend, but only if they bring new evidence not already reviewed by officials. That requirement has pushed teams to dig through every corner of the sport for fresh, inventive proof. The effort spans tools as varied as simulators and stopwatches in the search for an angle that might flip a result.

Why it matters: Penalty appeals can swing championship points, podiums and constructor standings, so the margin between accepting a ruling and overturning it carries real competitive weight. The 'new evidence' threshold sets a high bar, which is why teams invest in unconventional methods to clear it. Understanding the process explains how some on-track decisions get challenged long after the checkered flag.

What to watch: Watch how teams deploy these evidence-gathering tactics at upcoming race weekends, and whether the stewards' standard for accepting new proof shifts in response.