The 61st Rolex 24 Hours at Daytona International Speedway starts at 13:40 ET on Saturday, January 28. Sixty-one cars will take the green flag in Americas biggest sportscar race of the year, which kicks off the IMSA season. New for 2023 is the GTP class prototype sportscars from Acura, BMW, Cadillac and Porsche that feature electrical hybrid systems, as IMSA embraces a new ... Keep reading