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2012 Nissan Leaf

Manufacturer's Suggested Retail Price: $27,700

With gas prices approaching $5 a gallon, fuel efficiency is a key concern for commuters. In that sense, it’s hard to improve on a car that uses no fuel whatsoever. The all-electric 2012 Nissan Leaf requires not one drop of gas, but it can still reach speeds of up to 100 miles per hour when fully charged. But what about cabin noise?

“If you've driven a hybrid, you know how silent they are in electric-only mode,” says Edmunds.com. “The 2012 Nissan Leaf cruises with this kind of serenity at all times, with only a vague high-pitched whine detectable under heavy throttle. Even the high-pitched noise the Leaf generates to alert pedestrians at low speeds is largely undetectable in the cabin.”

nissanusa.com