Today's revelation concerns the company plans around producing an all-electric truck.  Better still, according to Musk on Twitter, Tesla will reveal it just a few months – September 2017!

What does "seriously next level" mean?  It could be anything.

Earlier reports from last year (again from the CEO) indicated Tesla's Jerome Guillen was already driving and testing the Tesla semi project, although we have yet to catch any evidence of the program in the wild.

The intention to build an all-electric semi-truck was first mentioned during Tesla's reveal of Master Plan Part Deux, just last Summer with this disclosure:

"In addition to consumer vehicles, there are two other types of electric vehicle needed: heavy-duty trucks and high passenger-density urban transport. Both are in the early stages of development at Tesla and should be ready for unveiling next year. We believe the Tesla Semi will deliver a substantial reduction in the cost of cargo transport, while increasing safety and making it really fun to operate."