The market cap of the 7 big car-companies combined (Toyota, Honda, Mercedes, VW, Ford, GM, BMW) = $557b. Tesla market cap = $527b.

This means at comparable margins, for Tesla to reach its current valuation, 3/4 cars sold in the developed world would have to be Teslas. For reference, the marketcap of the entire automobile industry [1] minus Tesla is $1300b.

[1] https://companiesmarketcap.com/automakers/largest-automakers...

Tesla is a stock to gamble on. Unlike GME, there is probably a lower bound on how much you can lose. (maybe ~70% at worst if Elon has a heart attack). But, 70% is a long way down.