RBC analyst Tom Narayan says it could be worth up to $400 billion. You can live stream the event above or on Tesla's YouTube channel here.

Tesla hasn't provided the public with a direct link for a livestream, but the company's Twitter account shared a new animation of the semi directing fans to watch live on its website, Tesla.com.

The other prevailing theory is that cargo-carrying Tesla-Semi Trucks will operate in platoons. Mashable will be at the unveiling and we’ll be sure to share the live stream link as soon as Elon ...