I don't know if it technically counts as a lie, but on 31st of January he told investors that he expects profitability in Q1 2019. Instead Tesla delivered 700M loss.

Before that, in 2017, he told investors - "“What people should absolutely have zero concern about, and I mean 0, is that Tesla will achieve a 10,000 unit production week by the end of next year. […] I think people should really not have any concerns that we won’t reach that outcome from a production rate.”

Guess what, we are well into 2019, and they are producing around 5-6K M3 per week.

This is not how you run multi-billion company.