This article in the latest Environment and Climate News suggests that the EPA may be overselling the trendy half electric half internal combustion engine vehicles. The quote below sums it all up:
“Most automobiles would have actual miles per gallon performance of approximately 75 to 87 percent of EPA’s rating. However, data from Consumer Reports’ extensive road tests show the Honda Civic Hybrid and Toyota Prius averaged well under 60 percent of EPA’s reported miles per gallon when operating on city streets. The Civic Hybrid was getting only 26 mpg in the city.”