JOLIET, IL- AUGUST 28: Justin Wilson, driver of the #18 Z-Line Designs Dallara Honda, drives side-by-side with Helio Castroneves, driver of the #3 Team Penske Dallara Honda, during practice for the IRL IndyCar Series PEAK Antifreeze & Motor Oil Indy 300 on August 28, 2009 at the Chicagoland Speedway in Joliet, Illinois.