Motor racing-Hamilton says unchecked cars were also illegal in Austin

Formula One F1 - Mexico City Grand Prix - Autodromo Hermanos Rodriguez, Mexico City, Mexico - October 26, 2023 Mercedes' Lewis Hamilton ahead of the Mexico City Grand Prix REUTERS/Raquel Cunha

MEXICO CITY (Reuters) - Lewis Hamilton claimed on Thursday that more cars than his Mercedes and Charles Leclerc's Ferrari were illegal at the U.S. Grand Prix in Austin and called for a fairer system of post-race checks.

The seven times world champion was stripped of second place, and Leclerc from sixth, for excessive wear to the car's mandatory under-floor 'plank' in last Sunday's race.