I'm confused. Who would think buying a car (any car) is an investment that would increase in value?

And just because the value of Bitcoin has gone up, doesn't mean it's not a scam. "Market can stay irrational longer than you can stay solvent."

Bitcoin continues to fail at its stated goal of being a currency - it's more like digital gold that, unlike actual gold, would be worthless in a real global crisis. A lot of bitcoin-adjacent stuff has also collapsed since 2017 (NFTs, FTX). The idea of putting everything "on the blockchain" also seems to have died.