With the 2013 NASCAR season coming to an end last weekend in Florida, it doesn't take long for race fans to direct their attention to the new year ahead.

Anticipation is already building for the start of the new racing season which will begin in Florida with the twice-around-the-clock road racing classic, the Rolex 24 At Daytona.

Testing sessions were held this past week at Daytona International Speedway for this endurance event which will be different in 2014 because of the combination of two long-time sports car series.

The American LeMans Series has combined with Grand-Am to form the United SportsCar Championship under the sanction of the International Motor Sports Association. This combination has piqued the interest of race fans, drivers, manufacturers and sponsors.

Cars from both series tested this past Tuesday and Wednesday. Based on these sessions it could be the biggest 24 in history.