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2．宝马

??? 虽然声势可能不如去年那么浩大，但今年宝马的销量仍然稳步增长，而且宝马依然稳居最环保的汽车厂商阵营。最值得关注的是宝马最近推出的i系列轿车，这个系列将包含电动、混合动力以及其它替代能源汽车。不过最新的宝马i3全电动城市轿车于2013年发布之前，宝马仍将继续推进更传统的“高效动力”技术，以提高其汽油动力车型（比如最新的宝马3系）的燃油经济性。

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2. BMW

??? It may not have made as much noise in 2011 but BMW enjoyed another solid year of sales increases and continued to position itself as the greenest of automakers. Most noteworthy was its rollout its i brand, which will comprise electric vehicles, hybrids, and other alternative-fuel vehicles. Until the launch of the all-electric i3 city car in 2013, BMW will continue to promote its more-conventional "efficient dynamics" efforts to boost fuel economy in gasoline-powered cars like the latest version of the 3 Series.

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