DAYTONA BEACH, Fla. — In all sorts of weather, racing day and night, sprints and enduros — the varying conditions are what separate the IMSA WeatherTech SportsCar Championship drivers from most of their racing counterparts. Some will assume a higher degree of risk than they would in a race in the middle of the season. Just when so much is on the line — a win in the 25th running of this prestigious race and in many cases a championship trophy — the setting changes. In some ways, the shift to darkness makes Petit Le Mans feel like two different races. Interestingly, many drivers say they prefer the night portion of the race, challenges and all. “Part of what makes it so challenging is the fact there are so many different classes that are racing at the same time on the same racetrack,’’ said Riberas.

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