Edoardo Mortara and Filipe Albuquerque are battling for a title in the United States. Together with two other drivers the Audi drivers had won the GT class at the Daytona 24 Hours in January. The Daytona 24 Hours is not only part of the GRAND-AM Series but also of the North American Endurance Championship. The series includes two other rounds – a 6-hour race at Watkins Glen on June 30 and a 3-hour race at Indianapolis on July 26. Mortara and Albuquerque are sharing an Audi R8 GRAND-AM of Audi Sport customer racing at these events. As of the Watkins Glen race, an Audi customer will additionally be entering the GRAND-AM Series. At the wheel of Fall-Line Motorsports’ Audi R8 GRAND-AM will be Al Carter, Charles Espenlaub and Charlie Putman.