"I think we will be ‘feature-complete’ on full self-driving this year, meaning the car will be able to find you in a parking lot, pick you up, take you all the way to your destination without an intervention this year. I am certain of that. That is not a question mark." - Elon Musk in 2019

Lie. Full self-driving is not feature complete in 2022, and won't be for years.

"Am considering taking Tesla private at $420. Funding secured." - Elon Musk in 2018 https://twitter.com/elonmusk/status/1026872652290379776

Lie. Funding was not secured. Musk is still doubling down on this one.

There was an incident where the EPA gave the Model S a range of 391 miles, and Musk got upset and claimed the left the key in the ignition overnight, which the EPA denies. Musk provides no evidence, but neither does the EPA, so I guess this one is "Makes weird claim contradicting a government agency that has no reason to lie", but I am inclined to believe the EPA over Musk. (https://www.theverge.com/2020/5/1/21244556/elon-musk-lie-epa...)

These are a small sampling of examples, you can look at Musk's statements over time about Tesla, the Hyperloop, and his future intentions regarding the various bizarre whims he adopts monthly, and there's tons of stuff where exaggerates and overstates, but also plenty where he straight up lies and completely misrepresents the truth. Particularly with anything Tesla related, he's actually more straight up about SpaceX capabilities, for whatever reason.