Moreover, ethanol yields about 30% less energy per gallon than gasoline, so mileage drops off significantly.

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Cars that weigh less can use smaller, more efficient gasoline engines that get better mileage.

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Available in front- and all-wheel-drive versions, the stylish midsize hybrid luxury crossover SUV is quicker and gets better mileage than its gasoline powered equivalent.

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Saab has come up with a new vehicle that it says gets better mileage from ethanol than from gasoline.

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Since conventional hybrids are not plugged in to recharge the batteries, the most important assumptions are gas mileage and the cost of gasoline, which has been subject to wide fluctuations over the past several years.

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The recent slump in gasoline prices makes the purchase of weighty, low-mileage vehicles all the more plausible.

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As with gasoline-fueled and hybrid cars, how you drive affects real-world mileage.

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