相对于现在的38.5，发动机热效率方面对油耗的提升贡献4％？
希望整体油耗能比现在提升20％

【 在 facilitator (诱) 的大作中提到: 】
: 以前的印象中只有柴油机才能达到这个效率
: http://www.autoblog.com/2014/01/28/next-gen-toyota-prius-details-report/
: The Toyota Prius is undeniably the king of the hybrid market in the United States, with a 39.4 percent market share in 2013. With the next-generation Prius likely to go on sale in 2015, Toyota is trying to build an even more efficient hybrid to keep its control of the market.
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