In 1955 he was tempted away from Talbot and joined the American John Fitch in racing a Mercedes-Benz 300 SLR. During the 24 Hours of Le Mans, in the third hour of racing, while on the Tribunes Straight, the car of Mike Hawthorn cut into the pits, slowing in front of the Austin-Healey 100S of Lance Macklin. Macklin was forced to make an evasive move away from Hawthorn, pulling across the track into the path of Levegh's faster Mercedes, which was driving just in front of Mercedes teammate Juan Manuel Fangio. Running up the side of Macklin's car, Levegh's car launched into the air, striking high on a retaining wall, disintegrating and scattering components into the crowd. Levegh was killed when he was thrown from the car and his skull crushed by the impact. The flammable magnesium body of the Mercedes quickly ignited in the accident; the combination of the fire and flying car parts killed 83 spectators with over 100 injured. The race was continued in order to avoid a mass exodus of spectators, which would have blocked all access roads needed for use by the responding ambulances.