Cadillac has won five of the last nine editions of the Mobil 1 Twelve Hours of Sebring, including the first race of the current GTP era in 2023, and appears best suited to disrupt Porsche’s grip on IMSA’s top class.

Felipe Nasr held off Jack Aitken and Cadillac Whelen to take Porsche Penske to a third straight victory in the Rolex 24.

Jack Aitken and Cadillac Whelen triumphed in a close-fought qualifying session to secure pole for the 64th annual Rolex 24 At Daytona.

Connor Zilisch will indeed get the chance to race for overall victory in the 64th annual Rolex 24 At Daytona on January 24-25, after being added to the entry list for Cadillac Whelen.

If you happened to roll past Watkins Glen International the day after Colin Braun and Tom Blomqvist won the Sahlen’s Six Hours of The Glen, you’d have been surprised by the sight and sound of GTP class competitors from the IMSA WeatherTech SportsCar Championship still pounding around the classic 3.4-mile...

Dries Vanthoor hadn't raced around Sebring International Raceway before this week, but you wouldn't be able to tell -- not after he stepped up to win the pole for the 73rd annual Mobil 1 Twelve Hours of Sebring on a sunny Friday afternoon of qualifying.Vanthoor, Philipp Eng and Kevin Magnussen...