After pulling out my slide rule (and then putting it away after I remembered I never did learn how to use it), calculator and a copy of the I Ching, I set out to solve this problem of the ages. According to the Department of Energy (DOE) we burned through 9,290,000 barrels (390 million gallons) of gas a day in 2007, which is about half of all finished petroleum used - so we're not even talking about diesel or aviation fuel. Using advanced algebraic formulae which required the participation of all of my fingers and toes, I've deduced we could save about 6,285,000,000 gallons each year (around 16 days worth of gas) if ten percent of us drove hybrids. A big number indeed but one I hope we can soon surpass.
[Source: Energy Information Administration]