The solar car is an electric vehicle powered by solar rays. Solar cells collect solar energy then transfer that energy to the battery. One Solar Array requires 800 solar cells. A panel of 800 cells spans 5.82 meters, hence the long body. The Solar Array can't afford to waste energy on luxuries like headlights because all power must channel to the engine.
Solar cars have to be a lot more efficient, and the costs have to come down.
Although the Solar Vehicle Project begins with MecE 465, most of the 184 students helping to build, fund-raise and promote the project are from outside engineering.