Endurance racing (motorsport) these classes continued to embrace the endurance format. Multiple drivers per car was an early adaptation as the rigors of endurance racing quickly overcome the abilities of most racing drivers to compete solo, although solo attempts on 24 hour races like Le Mans would continue into the 1950s. The various endurance formats were appealing to manufacturers, not only as alternatives to the expense of Grand Prix racing, but also because of its increased relevance to road going models. In automobile endurance racing, three events have come to form a Triple Crown. They are considered three of the most challenging endurance
Cenomani Vercingetorix in the great rising (52 BC) with a force of 5000 men. Under Augustus they formed a "civitas stipendiaria" (Roman tributary town) of Gallia Lugdunensis, and in the 4th century part of "Gallia Lugdunensis III". There was another people called Cenomani that held extensive territory in Cisalpine Gaul; however, there is disagreement whether they are one and the same people. The orthography and the quantity of the penultimate vowel of Cenomani have given rise to discussion. According to Arbois de Jubainville, the Cenomni of Italy are not identical with the Cehomni (or Cenomanni) of Gaul. In the case of