Compared to this, even you look like a gas guzzler. Students at Cal Poly have built a super-streamlined ride that clocks a record 2,752.3 miles per gallon. They call it the Black Widow. The all-carbon-fiber three wheeler weighs a scant 95 pounds and is powered by a seriously tweaked 3-horsepower, four-stroke Honda 50cc single. Its coefficient of drag is an astounding .12. It uses 20-inch bicycle wheels, two in the front and one in the rear. Yeah, it tops out at just 30 miles per hour, but still, it’s an incredible feat.

Link to Inhabitat article