Tesla CEO Elon Musk Says Heart of Model S is Japanese -WSJ By: Benzinga via Benzinga September 08, 2014 at 06:53 AM EDT Tesla (NASDAQ: TSLA) CEO Elon Musk, speaking in Japan Monday, said the "heart of the Model S is Japanese." The batteries for the Model ... Read More >> Related Stocks: Panasonic Hldgs Corp ADR Tesla, Inc.