A panel of experts talking at the World Oil Conference may have pinpointed a rather obvious sticking point in building fuel-efficient vehicles: It's easier to design one than to sell it. A Toyota official said more consumers want horsepower, and a university professor says consumers' main worry is the price of commuting. More plug-in hybrids was one proposed solution. Dr. John Heywood, one of the world's leading experts on the internal combustion engine, believes there is more efficiency to be found in the gas engine. He says it's important to get improved engines on the market as fast as possible. If consumer demand won't spur more efficient vehicles, perhaps governament will. The panel noted the legal efforts by California and other states to sue the automakers into reducing greenhouse gasses.

[Source: Reuters via Scientific American]

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