According to Earth-Policy.org, if the United States replaced its entire fleet of passenger cars with "super-efficient" hybrids such as these over the next 10 years, gasoline use would be slashed in half.
CNN: All About: hybrid transportation
Put another way, a ticket to the Super Bowl in 1966 was worth about 31 gallons of gasoline then, enough for 2 fill-ups.
WSJ: Gasoline prices get early start on spring surge
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