You are cruising along on a sunny day in your gleaming Beamer. Then you hit the inevitable traffic jam. The engine switches off of its own accord. It is saving fuel. Drivers probably won’t feel a kick as the engine purrs into life once more. Investors in carmakers should. It ought to remind them that the industry can, at times, be a tricky play on environmental regulation.
你在一个阳光明媚的日子开着闪闪发亮的宝马(BMW)车出游。然后遇上了躲不掉的交通堵塞。发动机自动关闭。这样能节省燃油。当发动机再次点燃时，驾驶员可能感觉不到一点震动。但是汽车制造商的投资者应该感受到，这该提醒他们，有时这个行业在环境监管方面会很棘手。
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