watch 01:48 The Loop (Movies) Do you like this video? Duke Coulters was a former Piston Cup racer who competed in the 1950s seasons. He is sponsored by Gasprin, Shifter's Drugs, Re-Volting and Motor Oil. His racing number is 10. Retrieved from "https://worldofcarsdrivein.fandom.com/wiki/Duke_Coulters?oldid=135766" Categories: Cars 3 Cars 3 Characters Racing cars Piston Cup Racers Male Characters Community content is available under CC-BY-SA unless otherwise noted.