SPARROW is fueled by sound and heat. The body is made up of carbon nano-muscle fibers woven into textiles that can change their form by electronic control. Embedded into the textiles are sensors that absorb all sound and all heat around the racer. SPARROW uses solar heat and operational heat (mechanical friction). SPARROW uses all sonics, and all vibrations along with that. There are sensors and energy transfer materials all over the racer that translate movement and vibration into electric impulses (energy). All of this energy is used to heat a water reservoir, turning water into a supercritical fluid that powers a Tesla Turbine engine that builds electricity. This energy is dispersed to the wheels for propulsion or stored when immediate dispersion isn't needed.