Don't forget that Elon flat-out lied about the Cybertruck - twice the range, half the price, delivery in early 2021 months BEFORE the Rivian, and unbreakable windows ... None of those things was true, but of course we won't know for sure for at least a year until the Cybertruck is ready to ship and has real specifications ...
This is just more of Musk's market manipulation - mendaciously undermining potential rivals for his own benefit. And Elon is still going on about his vast experience with manufacturing, deigning to give Rivian advice on how the real-world differs from expectations. If Elon is really that wise, then how does he explain his epic fail at the Cybertruck delivery date?
I personally would NEVER buy a Cybertruck, even if it were available today and even if the Rivian were still 5 years away.