Making driving less energy-intensive than flying
Green Car Congress
JANUARY 9, 2014
To make driving less energy intensive than flying, the fuel economy of the entire US fleet of light-duty vehicles would have to improve from the current 21.5 Motorcycles were the second most efficient (2,675 BTU/peson mile), followed closely by flying (2,691 BTU/person mile). l/100 km) to at least 33.8 in 1970 to 1.38
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