Saturday, the 63rd edition of the Rolex 24 at Daytona will start at 1:40 p.m. ET from the World Center of Racing. This year's 24-hour race features a number of NASCAR and IndyCar drivers competing across the four classes of cars in GTP,

The Daytona 500 has NASCAR’s most unique — and complicated — qualifying format. And it got more convoluted this year with the largest number of entrants in a decade and a new rule that could add a 41st driver to the 40-car field.

A controversial new NASCAR rule designed for "world-class drivers" could give Helio Castroneves an automatic berth into the Daytona 500, and, should the four-time Indianapolis 500