LAS VEGAS, NV - AUGUST 23: Helen Taylor (L) and her husband John Taylor address media and consumers at a Shell gas station after setting a fuel efficiency record driving across the 48 contiguous ... more 
LAS VEGAS, NV - AUGUST 23: Helen Taylor (L) and her husband John Taylor address media and consumers at a Shell gas station after setting a fuel efficiency record driving across the 48 contiguous states as part of the Shell Smarter Driving Program August 23, 2011 in Las Vegas, Nevada. The Taylors set a fuel efficiency world record with an average of 64.42 mpg. (Photo by Ethan Miller/Getty Images for Shell) less 
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Getty Images | Photo By Ethan Miller / Getty Images for Shell
Tue, Aug 23, 2011 7:32 PM EDT