35 Mazda powered open wheel racers are registered for the Indy GP of Sonoma in the Formula Car Challenge presented by Goodyear. (August 26-28 at Infineon Raceway)
Entry list is posted - tons of familiar racers:
http://formulacarchallenge.com/Docu...f%20Sonoma.pdf
For more information visit the series website:
http://www.FormulaCarChallenge.com
