If Elon sees this, he'll definitely do it, with early non disclosure, with how volatile Bitcoin is, he has a lot to gain and nothing to lose.
Let's say they have a deal to buy/sell 111 model 3s at 1 bitcoin each and the agreement says no public announcement until he receives the bitcoin. (Let's say 1 bitcoin is exactly worth 1 Model 3 for easy calculation, I know the string of bits is much more valuable than a model 3).
When this gets announced (after Elon receives the full payment), bitcoin prices are gonna shoot up, maybe even 20% or so. Boom, Elon practically sold a car for 20% more than it's worth, in addition to increasing the price of what he already owns. If he's smart, he'll maybe even buy some more bitcoin just before the announcement. Knowing him though, he's probably gonna hold
Love is a lie guys, there's no such thing, might as well be a soulless hedonist.