Tesla needs a perfect year. That won't be easy By Julia Horowitz , CNN Business Updated 1215 GMT (2015 HKT) April 27, 2021 A version of this story first appeared in CNN Business' Before the Bell newsletter. Not a subscriber? You can sign up right here . London (CNN Business) Tesla ( TSLA ) just posted record quarterly profits , with one measure of earnings passing the $1 billion mark for the first time. But in order to justify its sky-high stock price, the automaker will need to overcome a growing list of challenges. What's happening: A global chip shortage is snarling production, while the business environment in China, a crucial market, remains fraught. Competitors are gaining ground and Tesla faces a safety investigation tied to a fatal crash in Texas . Shares are down 2% in premarket trading. Tesla shares have jumped in April The carmaker's stock is up almost 11% this month after pulling back in February and March. Some Wall Stree