Insanely cheap? They had to borrow money (as opposed to selling shares) at 5.3% interest last year. Those bonds currently trade at about 5.9% interest (https://www.bondsupermart.com/main/bond-info/bond-factsheet/...)

If they need more money, they would either need a very good story, or pay more interest (“Production pushed back again” is not “a very good story”)

Tesla is a stock that may bring big profits, but that is not without risk.