The car driven by the Challenge X champion Mississippi State University crosses the finish line Wednesday, May 21, 2008 in Washington, DC. For the second year in a row, the Mississippi State University team won the Challenge X trophy by beating 16 other institutions in the “Crossover To Sustainable Mobility” competition where each team re-engineered a Chevrolet Equinox with its own advanced propulsion hybrid design to achieve better fuel economy and lower greenhouse gas emissions - without sacrificing performance, utility and safety. (Photo by Mark Finkenstaedt for General Motors)