Take a look at this car from the 2008 Eco-Marathon, registering at a whopping 7,148 MPG (via Autopia):
Looking like one of those space caskets from Star Trek, the single-seat racer you see [above], constructed by a team from the French technical school St. Joseph La Joliverie and dubbed the Microjoule, traveled an amazing 7,148 miles on a single gallon of fuel (in other words, almost ten miles per teaspoon). <MORE>
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