Romain Grosjean had been sceptical about the introduction of the halo but two years on, it was a key element in saving his life.
The cockpit safety device divided opinion when it became mandatory for the 2018 season, with Lewis Hamilton among its critics.
Hamilton described the halo as the “worst-looking modification” in the sport’s history but changed his mind following a subsequent safety presentation.
However the aesthetics of the device, with its three prongs which run at approximately head height around the cockpit, continued to court criticism.
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