Tesla is the most exciting car company in a generation . . . but can it live up to the hype?Tesla Motors and CEO Elon Musk have become household names, shaking up the staid auto industry by creating a set of innovative electric vehicles that have wowed the marketplace and defied conventional wisdom. The company’s market valuation now rivals that of long-established automakers, and, to many industry observers, Tesla is defining the future of the industry. But behind the hype,