Sonoma Raceway - Day 1

The six championship contenders (L-R) Will Power, Helio Castroneves, Graham Rahal, Scott Dixon, Josef Newgarden, and Juan-Pablo Montoya speak at during practice for the Verizon IndyCar Series GoPro Grand Prix of Sonaom at Sonoma Raceway on August 28, 2015 in Sonoma, California.
(Aug. 27, 2015 - Source: Jonathan Ferrey/Getty Images North America)