Heavier cars use more fuel. Now some bright spark has calculated that the US uses one billion gallons more gas every year than if the entire population had remained at the average weight of the 1960s. For every extra pound added to the average weight, the country uses another 39 million gallons of fuel each year.
So complain about gas prices if you must, but the rapid increase you should really be worried about is your waistline. [The Atlantic]
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