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
Columbus Motor Speedway in the rubble, and six people suffered minor injuries at the season-opening event. Local rescue workers were called to the scene and the events were canceled for the evening. After the incident, the platform was repaired and reinforced. Columbus Motor Speedway The Columbus Motor Speedway (CMS), was a 1/3 mile asphalt oval and figure-eight racing track located south of Columbus, Ohio within the town limits of Obetz. In 1945, John Nuckles and Robert Roseberry purchased of land for site of the future race track. The track opened in 1946 as a dirt track for motorcycles. In 1950 the track was