Images: 100 miles per gallon or bust!

The Tango from Commuter Cars is a plug-in, all-electric vehicle that's only 39 inches wide. Commuter Cars believes that taking up less space on the highway will ease congestion. Its goal is for Tango to reach a speed of 120 mph and go from 0 to 60 mph in 4 seconds. Its size makes it easy to park and there is a seat behind the driver.

Photo by Commuter Cars Corp.