2/4 The winning Hypercar did 381 laps. If you did them in 13-lap stints that would have been 29 stops plus a splash, and if you did them in 12-lap stints it would have been 31 plus a much bigger splash. The difference is about 2.44 stops. A stop without tyres was ~75s, so you save 183s or 0.48/lap.