2007 MAZDA RACEWAY LAGUNA SECA AMA CLASSES ANNOUNCED PICKERINGTON, Ohio (December 8, 2006) – Officials from AMA Pro Racing and Mazda Raceway Laguna Seca announced today that the Red Bull U.S. Grand Prix will feature AMA Superbike and AMA Supersport classes along with the FIM MotoGP class. The combined event will be held on July 20-22, 2007 at Mazda Raceway Laguna Seca. The second AMA Championship event to be held at the track in 2007 will be on Sept. 15-16 and will feature all four AMA classes: the AMA Superbike Championship presented by Parts Unlimited, the Pro Honda Oils Supersport Championship presented by Shoei, the Lockhart Phillips USA Formula Xtreme Series and the Repsol Lubricants Superstock Series. Tickets and information are available by calling (800) 327-SECA or on-line at www.laguna-seca.com.