Tesla reported strong fourth-quarter earnings on the heels of "jaw dropping" quarterly and full-year sales. The electric vehicle giant acknowledged supply chain issues were its "main limiting factor," as automakers continue to grapple with computer chip and parts shortages. CEO Elon Musk did not join the earnings call, though he recently tweeted he would provide "an updated product roadmap," including teasing production of its highly anticipated Cybertrucks, expected to start early next year.