Being a two-time Tesla owner for 8 years, at this point, there is no claim Tesla can possibly make that I would ever believe. Their (and Elon’s) track record on countless claims have been wildly misleading at best or completely false at worst.
Trucking seems like an industry where exaggerating the range will lead to contracts being cancelled and companies being sued. I'm assuming that a Tesla Semi can't just stop off at the nearest Supercharger.
[1]: https://www.theverge.com/transportation/917167/elon-musk-tes...