I have a toyota pickup. No, it is not a good way to make money, although it holds its value pretty well. I don't recall it every being worth more than it was when I bought it.
I have a brother in law who used to buy junkers and get them running and then sell them at a profit.
I actually have a pair of old Toyota Landcruisers from the 1960s that are in fair shape now that I've put a little money (ok, thousands) into getting them running reliably. A little body work and paint and I can probably sell them for 10 times what I bought them for. A friend just did that (paid for his home solar!)
But no, I was saying don't buy a mass market car of any sort expecting to turn a profit unless you really like gambling. The situation with EVs was never going to last.