It had its supporters and its detractors when it was brought in for the 2018 season – but the scrape marks across the top of Charles Leclerc’s halo after his frightening first lap smash at Spa told their own story about why the system was implemented at the start of this year.
The first corner crash was initiated by Renault's Nico Hulkenberg, who locked up his front wheels going into La Source after claiming that he lost front-end loading on his Renault in the dirty air of the cars in front of him. The German driver collected Fernando Alonso’s McLaren, sending it sailing over the top Charles Leclerc’s Sauber, but fortunately without injury to either driver.
While Hulkenberg was later handed a 10-place grid penalty by the stewards for the following race in Monza, images of Leclerc’s car after the crash showed clear markings on the right side of the Sauber’s halo caused by Alonso’s McLaren.
“Definitely, the halo probably helped today,” Leclerc told the media when asked about the crash, while Fernando Alonso called the incident “good proof” of the efficacy of the system, going on to compare the crash to the 2012 first-lap incident at Spa caused by Romain Grosjean. "It’s a good proof," said Alonso. "We didn’t need any proof but it’s a good thing."