PEAK Antifreeze & Motor Oil Indy Grand Prix of Sonoma County Practice

(Left to right) Dan Wheldon driver of the #10 Target Chip Ganassi Racing Dallara Honda, Helio Castroneves driver of the #3 Team Penske Dallara Honda, Scott Dixon driver of the #9 Target Chip Ganassi Racing Dallara Honda and Tony Kanaan driver of the #11 Andretti Green Racing Dallara Honda pose during a presentation as the four contenders for the IndyCar Championship after practice for the IndyCar Series PEAK Antifreeze & Motor Oil Indy Grand Prix of Sonoma County at the Infineon Raceway on August 22, 2008 in Sonoma, California.
(Aug. 22, 2008 - Source: Robert Laberge/Getty Images North America)