D6CALF4369WGA Fontana California Sep2006: The 2006 Sony HD 500 was a NASCAR Nextel Cup Series stock car race held on September 3, 2006 at California Speedway in Fontana, California. Contested over 250 laps on the 2-mile (3.23 km) asphalt D-shaped oval, it was the twenty-fifth race of the 2006 NASCAR Nextel Cup Series season. Kasey Kahne of Evernham Motorsports won the race.