This is a 2005 Toyota Echo modified for high fuel efficiency. I have achieved up to 48.4 MPG and the average is 43 MPG. It has a belly pan aeromod made out of corrugated plastic (COROPLAST), a vacuum gauge and a Scan Gauge II It also has a modified cruise control that maintains a constant load, instead of speed, to keep the MPG steady. You can find more info at the Ecomodder forum.