NASCAR put nine cars on the chassis dyno after the race, to compared effective horsepower at the rear wheels: the Dodges of #12-Ryan Newman, #9-Bill Elliott and #22-Scott Wimmer, Fords of #97-Kurt Busch, #17-Matt Kenseth and #38-Elliott Sadler, and Chevys of #8-Dale Earnhardt Jr., #48-Jimmie Johnson and #20-Tony Stewart.( Winston Salem Journal )(11-3-2003) AND Of the nine cars NASCAR tested on the chassis dynamometer after the Phoenix race, Tony Stewart’s #20 had the most horsepower.( Yahoo Sports/Sporting News )(11-3-2003)
