Patrick Riley, left, and Justyn Williams go head-to-head with their …

Photo by Robert K. Yosay | published: April 11, 2014

Patrick Riley, left, and Justyn Williams go head-to-head with their carbon-dioxide cars at Chaney High School. The boys, both juniors in the Science, Technology, Engineering and Mathematics program, built the cars. Then, finishing with the best times of their classmates Thursday, they raced each other. Williams won in the best-of-three final.