At 2 : 30 p.m. this past Saturday , the green flag dropped for the 55th running of the Rolex 24 Hours of Daytona .
55 cars , spread across four different categories , careened into turn one .
At 2 : 30 p.m. this past Saturday , the green flag dropped for the 55th running of the Rolex 24 Hours of Daytona , and 55 cars , spread across four different categories , careened into turn one .