Unless he likes to show off, the lambo aventador is a bit of a shitty choice compared to a model S plaid: a lot more space, comfort and performance for less than a quarter of the price. Plus, it's a lot less noisy.
Next, if he knows the betcoin is about to crash, why not short it before buying stock? Easy leverage, a lot of revenue in a very short time. Well, depends on how much it crashes, sure, but a crash is a crash. Well, that is, if shorting crypto like stock is possible.
On top of it, buying a third of a company at once is not that easy, it would take quite some time and also skyrocket the price! That's totally unrealistic.