Tesla stock rises 5% on Roadster reveal, but analysts question financial impact

Tesla shares rose 5% in premarket trading on Friday after Elon Musk's electric vehicle maker unveiled a redesigned Roadster featuring built-in thrusters designed to enable short flights, nearly a decade after the company began accepting deposits for the electric sports car. The white two-seater, developed in collaboration with Musk's rocket company SpaceX, was showcased at an event on Thursday. The vehicle drove upside down on a ramp using a suction system, turned in the air and landed using its thrusters. It later used the technology to jump over a truck and other vehicles, twisting in the air during the manoeuvre. According to Tesla's timer, the Roadster can accelerate from zero to 60 miles per hour in less than a second,…