In a recession, companies that are not heavily leveraged will survive, and often do better. Their heavily leveraged competition will die. Further, in any recessionary environment, smart governments will step in to encourage economic activity: cheap loans, low interest, etc... As
@neroden pointed out TSLA doesn't have much debt.
All stocks will tank. It's the ability to weather the recessionary storm is what matters. IMHO one of the reasons why so many older companies keep lots of cash on hand nowadays is because of they survived the recession. I recall articles, pre-recession, criticizing companies for keeping too much cash and not using enough leverage: "not maximizing their value for investors they said..."
On a personal level that's one reason why I don't do margin and always keep cash reserves. Same principle. I'm not smart enough to know when the next big down turn is going to happen, or fast enough to respond.