Tesla's falling sales are a sign that its grip on the electric vehicle market is loosening
Tesla appeared to have lost control of the market it effectively created after reporting a stunning drop in quarterly sales on Tuesday, raising new questions about Elon Musk's leadership of the company.The sales decline caught investors by surprise as rivals such as China's BYD and South Korea's Kia and Hyundai reported increases in electric vehicle sales, suggesting that slowing overall demand for battery-powered models was not the only explanation of Tesla's problems.Tesla pioneered the electric vehicle market with the Model 3 sedan and Model Y sport-utility vehicle, proving that battery-powered cars could be attractive, practical and profitable. The cars have revolutionized the automotive industry and forced established automakers to develop their own electric models.Bu...