built on a lola racing chassis, this ultra efficient car features a unique clear plastic body that was designed and built by high school students at the automotive design studio at the delasalle education center. the car gets around 300  mpg thanks to its lightweight plastic shell. the students originally wanted to use fiberglass, but this proved too  heavy. the plastic they used is a 3m products that is typically used to shrink wrap windows. a metal wireframe  serves as the structure for the plastic, which is then stretched by hand and heated up to conform perfectly around  the frame. the cost is inexpensive and weighs only 39 pounds. the car uses an old racing chassis that was repaired  by the students. the electric engine uses a sprocket-and-chain powertrain driven by 21 lithium-ion batteries.