Race cars on track at 1955 French Grand Prix in Le Mans

The video describes a tragic day in auto racing history, where drivers from around the world participated in a race. Despite an early mishap involving three cars, all drivers were unharmed. The event attracted 250,000 spectators who watched the cars complete 250 laps on an eight-mile course, vying for top honors in the racing world.

What were the drivers doing at the start of the race?

What was the outcome for the drivers involved in the mishap?