Tesla CEO Elon Musk calls Model 3 assembly line "'Westworld' for cars" Tesla's Model 3 sedan is its first mid-priced, mass-produced electric car, but production of the vehicle has experienced significant delays. The company's CEO, Elon Musk, takes "CBS This Morning" co-host Gayle King through the Model 3 assembly line at his Silicon Valley factory, the technology of the car and the parts that go into the Model 3.