After nine combined seasons of factory racing in IMSA’s DPi and GTP classes, Acura is exploring whether the current season will be its last in the headlining category.

The two Porsche Penske Motorsport 963s still lead the 64th Rolex 24 At Daytona after two hours of racing, while the Corvette Racing by Pratt Miller Motorsports Z06 GT3.Rs have traded places at the head of the GTD Pro field.

Now that Acura Meyer Shank Racing's Nick Yelloly broke one long IMSA streak by taking the pole position in Detroit on Friday, he's looking to end another on Saturday – Porsche's reign.

Daytona International Speedway, IMSA and Honda Racing Corporation (HRC) have announced that HRC Global President, Koji Watanabe, will wave the green flag Saturday afternoon as the honorary starter of the 63rd annual Rolex 24 At Daytona.Concurrently, the Acura Integra Type S will be the Official Safety Car of this year's...