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August 25, 2013: At the IZOD IndyCar Series GoPro Grand Prix of Sonoma at Sonoma Raceway, CA.August 25, 2013: Opening ceremonies included sky divers during the IZOD IndyCar Series GoPro Grand Prix of Sonoma at Sonoma Raceway, CA.August 25, 2013: Grid Girls with their flags during the IZOD IndyCar Series GoPro Grand Prix of Sonoma at Sonoma Raceway, CA.August 25, 2013: Grid Girl with her flag during the IZOD IndyCar Series GoPro Grand Prix of Sonoma at Sonoma Raceway, CA.August 25, 2013: Will Power in the Team Penske #12 suits up for the warm-up during the IZOD IndyCar Series GoPro Grand Prix of Sonoma at Sonoma Raceway, CA.August 25, 2013: Ryan Hunter-Reay in the Chevrolet powered Andretti Autosport car #1 negotiates the chicane during the IZOD IndyCar Series GoPro Grand Prix of Sonoma at Sonoma Raceway, CA.August 25, 2013: Will Power in the Chevrolet powered Team Penske car #12 during the IZOD IndyCar Series GoPro Grand Prix of Sonoma at Sonoma Raceway, CA.August 25, 2013: Marco Andretti in the Chevrolet powered Andretti Autosport car #25 at the carousel during the IZOD IndyCar Series GoPro Grand Prix of Sonoma at Sonoma Raceway, CA.August 25, 2013: Will Power in the Chevrolet powered Team Penske car #12 at the carousel during the IZOD IndyCar Series GoPro Grand Prix of Sonoma at Sonoma Raceway, CA.August 25, 2013: Charlie Kimball in the Honda powered Novo Nordisk Chip Ganassi Racing car #83 during the IZOD IndyCar Series GoPro Grand Prix of Sonoma at Sonoma Raceway, CA.August 25, 2013: Will Power in the Chevrolet powered Team Penske car #12 during the IZOD IndyCar Series GoPro Grand Prix of Sonoma at Sonoma Raceway, CA.August 25, 2013: Scott Dixon in the Honda powered Target Chip Ganassi Racing car #9 at the chicane during the IZOD IndyCar Series GoPro Grand Prix of Sonoma at Sonoma Raceway, CA.August 24, 2013: Ryan Hunter-Reay in the Chevrolet powered Andretti Autosport car #1 at turn 3 during qualifying for the IZOD IndyCar Series GoPro Grand Prix of Sonoma at Sonoma Raceway, CA.August 24, 2013: Helio Castroneves in the Chevrolet powered Team Penske car #3 at turn 3 during qualifying for the IZOD IndyCar Series GoPro Grand Prix of Sonoma at Sonoma Raceway, CA.August 24, 2013: Scott Dixon in the Honda powered Target Chip Ganassi Racing car #9 at the carousel during practice for the IZOD IndyCar Series GoPro Grand Prix of Sonoma at Sonoma Raceway, CA.August 24, 2013: Will Power in the Team Penske #12 at the chicane during practice for the IZOD IndyCar Series GoPro Grand Prix of Sonoma at Sonoma Raceway, CA.August 25, 2013: Helio Castroneves, driver of the Team Penske #3, checks lap times after the warm-up for the IZOD IndyCar Series GoPro Grand Prix of Sonoma at Sonoma Raceway, CA.August 25, 2013: Simon Pagenaud, driver of the Schmidt Hamilton Motorsports #77 signs autographs during the IZOD IndyCar Series GoPro Grand Prix of Sonoma at Sonoma Raceway, CA.August 25, 2013: Will Power in the Chevrolet powered Team Penske car #12 entering winners circle at the IZOD IndyCar Series GoPro Grand Prix of Sonoma at Sonoma Raceway, CA.August 25, 2013: Will Power interviewed in winners circle at the IZOD IndyCar Series GoPro Grand Prix of Sonoma at Sonoma Raceway, CA.