tesla semi

Tesla has unveiled its first electric articulated heavy-duty truck, designed to challenge diesel trucks, throwing the company into a new market. Speaking at Tesla's facility in Los Angeles, chief executive Elon Musk said: "It's not like any  truck that you've ever driven." SCROLL DOWN FOR MORE VIDEOS AND PICTURES Semi is being labeled as the safest, most comfortable truck ever. Four independent motors provide maximum power and acceleration and require the lowest energy cost. Musk did not give a price for the…