The Cadillac had been leading before a restart, but had dropped to fifth before a sudden failure led to a major crash.

Generally speaking, the Rolex 24 at Daytona features two types of cars ... of the technological support for this group: Porsche, Cadillac, BMW, Acura and, new this year, Lamborghini.

Cadillac’s hopes of winning the Rolex 24 at Daytona were undone when Louis Deletraz ... Having fallen to sixth in the GTP class, the Swiss racer was battling the No.60 Meyer Shank Acura of ...

Thursday night, the fastest GTP cars were navigating the 3.56-mile, 12-turn Daytona road course in about one minute and 37 seconds, which equates to an average speed of about 132 mph. Need a break?

Can you tell the differences between the two prototypes in the Rolex 24? How about GTD and GTD Pro? This might help. Or might ...