The husband and wife team of hyper-milers fuel stretchers have just broken their own "48 Contiguous U.S. States Fuel Economy Guinness World Record" with an average of 67.9 miles per gallon.
volkswagen passat tdi® clean diesel sets world record for fuel economy around the lower 48 u.s. states - at 77.99 mpg! Volkswagen of America beats the GUINNESS WORLD RECORDS® achievement for the ...
At this point, it's hard to surprise us with alternative fuel sources ... until you learn that this one set a Guinness World Record for top speed, with an average of 65.5 mph on a run at the ...