I don't think anyone would be interested in spending their Bitcoin to buy a Tesla car. Elon Musk himself has stated that he will not spend the Bitcoin earned through the sale of Tesla cars, he said that TESLA will hold that Bitcoins for the long term. I don't think anyone would agree to lose their Bitcoin in such a bullish market. Bitcoin prices will skyrocket soon, and 100k is very reasonable within the end of this year.
I think the price of $ 100,000 for Bitcoin is far from the limit. It is quite possible that soon we will see prices an order of magnitude higher.