Tesla Motors Inc. says that equipping its Model S sedan with cheaper batteries will make it profitable with much lower sales than Nissan Motor Co. what is hoping to get for its Leaf car. In an interview, Chief Technology Officer J.B. Straubel said that the $57,000 electric Model S, which uses cells that are similar to what’s used in laptops, is meant to make money for Tesla at 20,000 annual deliveries.
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