Another day, another record: Tesla shares march toward $1,000

(Reuters) - Shares of Tesla Inc surged 20% on Tuesday to hit $940, extending a stunning rally that has more than doubled the company's market value since the start of the year as more investors bet on Chief Executive Elon Musk's vision.The latest surge was partly fuelled by Panasonic Corp saying on Monday its automotive battery venture with Tesla was in the black for the first time."Investors are now starting to believe that Tesla can make mass-volume electric vehicles, and automakers, battery..