Wikipedia
Chem-E-Car is an annual college competition for students majoring in Chemical Engineering.
According to the competition's official rules, students must design small-scale automobiles that operate by chemical means, along with a poster describing their research. During the competition, they must drive their car a fixed distance (judged on how close the car is to the finish line) down a wedge-shaped course in order to demonstrate its capabilities. In addition to driving a specified distance, they must also hold a payload of 0-500 mL of water. The exact distance (15-30 meters) and payload is revealed to the participants one hour before the competition. The size of designed cars cannot exceed certain specifications and cars must operate using " green" methods, which do not release any pollution or waste in the form of a visible liquid or gas, such as exhaust. The dimensions of the car are to be within 20x30x40 cm. This competition is hosted in the United States by the AIChE ( American Institute of Chemical Engineers),and winners of the competitions receive various awards, depending on how they placed.