What is rear skid rule that led to disqualification of both McLaren cars in Las Vegas F1 race?
The rear skid rule requires F1 car's wooden plank beneath the floor to remain at least 9 mm thick after a race. It prevents teams from running cars too low for extra downforce. Post-race checks at Las Vegas GP found rearmost skid wear on both McLaren cars driven by Lando Norris and Oscar Piastri to be below minimum 9mm thickness.