With unleaded gasoline selling for $3.40 a gallon, a few students from Edgerton High School in Wisconsin's Supermileage Vehicle Club will definitely put a smile on your face with their latest invention. The eight-member engineering club, which is in its third year, designed two gas-powered cars for a pair of a fuel efficiency competitions this spring. 

One vehicle which has a seat and three wheels was built by the 2011 class, got 160 miles per gallon in a competition held few months back. In comparison, the average U.S. passenger car gets 22.4 miles per gallon..

"We're really, really excited to see how both vehicles will run, especially the new one," said Max Ylvisaker, captain of this year's club.

According to the Washington Post, this year's club made changes with a goal of squeezing an extra 10 to 20 mpg out of it, they finished a new three-wheeled vehicle that is lighter and sleeker, with a more fuel-efficient motor.

"The point of the competitions and the focus of the Supermileage Vehicle Club is straightforward. I tell the students that I need a vehicle to get me from point A to point B safely and efficiently," said Joe Mink, a technology teacher helping students to develop their concept version of cars. 

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