A man looks around Tesla Motors' Model S P85 at its showroom in Beijing in this January 29, 2014 file photo. Panasonic Corp is considering investing in a U.S. car battery plant planned by Tesla Motors... more 
A man looks around Tesla Motors' Model S P85 at its showroom in Beijing in this January 29, 2014 file photo. Panasonic Corp is considering investing in a U.S. car battery plant planned by Tesla Motors Inc, sources familiar with the plan said on February 26, 2014, with total investment estimated by one source around 100 billion yen ($979 million). REUTERS/Kim Kyung-Hoon/Files (CHINA - Tags: BUSINESS TRANSPORT) less 
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Reuters | Photo By KIM KYUNG-HOON / REUTERS
Tue, Feb 25, 2014 11:26 PM EST