infineon Infineon Raceway is a world-class motorsports facility and is the only track in the country to host the NASCAR NEXTEL Cup Series, National Hot Rod Association (NHRA) drag racing, the American Motorcycle Association (AMA) Superbike Series and the IndyCarR Series. Infineon Raceway is busy year-round, with events scheduled 340 days a year.  The raceway is also home to a motorsports industrial park of more than 60 on-site businesses.  Its charitable arm, Speedway Children's Charities, has distributed more than $2.1 million to Sonoma County youth organizations since 2001. Visit the Infineon Motorsports display located in Expo Center Building 7. (photo credit to Ian Donald)