Juan Pablo Montoya, Graham Rahal, Scott Dixon, Will Power, Helio Castroneves and Josef Newgarden could all take home the Astor Cup after Sunday's race at Sonoma if things go their way.
- Wilson's brother: No blame over 'freak' accident
- Rossi wins British GP, retakes lead in MotoGP
- Karam sought counseling in light of Wilson's death
- Servia to drive Wilson's No. 25 Honda in finale
- Deaths robbing Letterman of his love for racing
- IndyCar's Wilson will save 6 by donating organs
- F1 drivers pay tribute to Justin Wilson