1-8 An electric-hybrid vehicle offers 52 miles per gallon in mixed (city and highway) driving conditions according to the U.S. Environmental Protection Agency. This is in comparison to the gas mileage of 22.1 miles per gallon for an average passenger car in the U.S. in year 2001 [9], with an average of 11,766 miles driven. Calculate the savings in terms of barrels of oil per automobile annually, if a conventional car is replaced by an electric-hybrid vehicle. In calculating this, assume that a barrel of oil that contains 42 gallons yields approximately 20 gallons of gasoline [16]. Based on the estimate in (17) of approximately 136 million automobiles in 1995

Fig: 1