In 2013, after Silverstone, Pirelli changed the tyre construction due to (undeniable) safety problems (the tyres exploded)
After that, RB's win rate more than doubled: from 37.5% to 91%!
RB's laptimes reduced by 0.37s, Mercedes' laptimes got 0.26s worse on average
Original tweet : https://twitter.com/FDataAnalysis/status/1660983163156590594