Former Formula 1 driver Martin Brundle has reacted to the gruelling conditions faced by drivers during the Qatar Grand Prix.
Several drivers complained about extreme heat in their cockpits during the race, due to the combination of the humid conditions and mandated 18-lap stint length.
Drivers usually have to manage their tyres over the course of two stint lengths, leading to respite in between quick laps.
But with the mandated tyre length put in place by the FIA over safety concerns with the tyres, it meant they were effectively producing qualifying laps throughout the event.
Ferrari driver Charles Leclerc described the race as one of the "toughest" in his F1 career, while several others admitted to either passing out or vomiting behind the wheel - Williams' Logan Sargeant retiring through his illness.
Brundle, who has raced in both F1 and sports cars, recalled the days of his career when temperatures spiralled in a post on X, formerly known as Twitter.
"Impressive to watch the F1 drivers cope with those conditions in Qatar," wrote Brundle.
"I’ve been that hot in a Le Mans/Daytona24/F1 car, you can get delirious at the wheel, and when the adrenaline subsides and the heat soaks you just can’t get away from your own body it hurts so much."