page_title: 24 Hours of Le Mans
section_title: 1970–1980
hierarchical_section_title: 24 Hours of Le Mans / History / 1970–1980
caption_attribution_description: The Renault Alpine A443 sports prototype racing car being demonstrated during the World Series by Renault event at Donington Park, September 2007.
context_page_description: The 24 Hours of Le Mans is the world's oldest active sports car race in endurance racing, held annually since 1923 near the town of Le Mans, France. It is considered one of the most prestigious automobile races in the world and has been called the "Grand Prix of Endurance and Efficiency". The event represents one leg of the Triple Crown of Motorsport, other events being the Indianapolis 500 and the Monaco Grand Prix. Unlike fixed-distance races whose winner is determined by minimum time, the 24 Hours of Le Mans is won by the car that covers the greatest distance in 24 hours. Racing teams must balance the demands of speed with the cars' ability to run for 24 hours without mechanical failure. In the 2019 race, 47 of the 61 qualifying cars ran the full duration.
  The race is organized by the Automobile Club de l'Ouest and is held on the Circuit de la Sarthe, which is composed of closed public roads and dedicated sections of racing track.
  The 24 Hours of Le Mans was frequently part of the World Sportscar Championship from 1953 until that series' final season in 1992. In 2011, it was a part of the Intercontinental Le Mans Cup.
context_section_description: For the new decade, the race took a turn towards more extreme speeds and automotive designs. These extreme speeds led to the replacement of the typical standing Le Mans start with a rolling Indianapolis start. Although production-based cars still raced, they were now in the lower classes while purpose-built sportscars became the norm. The Porsche 917, 935, and 936 were dominant throughout the decade, but a resurgence by French manufacturers Matra-Simca and Renault saw the first victories for the nation since the 1950 race. This decade is also remembered for strong performances from many privateer constructors, with two scoring the only victories for a privateer, in the decade. John Wyer's Mirage won in 1975, while Jean Rondeau's self-titled chassis took 1980.
caption: Renault Alpine A443 from 1978
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