A race may be run continuously from start to finish or may be made of several segments called heats or stages (stages are also known as legs). A heat is usually run over the same course at different times. A stage is a shorter section of a much longer course or a time trial.

The first regular auto racing venue was Nice, France, run in late March 1897 as a "Speed Week." To fill out the schedule, most types of racing event were invented here, including the first hill climb (Nice - La Turbie) and a sprint that was, in spirit, the first drag race.

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