Cybertruck'sVideo: Elon Musk showcases the power of the Cybertruck's 3-gun bulletproof chassis.When Tesla CEO Elon Musk took the stage last week to unveil the company's new Cybertruck, he did more than just present the electric pickup's environmental and performance credentials. He also put the truck's Bulletproof Chassis to the test, firing three guns at it from different angles and causing little more than a few sparks and scratches.