In the details section (at least as of yesterday) it specifically stated a 2400W inverter. It may have been an error, as I expected it to only be the 400W as well. I'm hoping that is where some of that $8600 premium package money went. I'll double check it again tomorrow.
In the configurator, on the packages tab, scroll all the way to right and select one of the premium packages, then click on the details link, it says it has a 2400w inverter. At least it did on the Sport, assuming it's the same on all trims.
I posted a "spec sheet" for an allocation that a dealer reached out to me with, and it got taken down because certain people said there were no allocations yet...
I also received this pic from a different dealership last week, so it may be slightly old information.
I was contacted last week by a dealer telling me that they had received an allocation for a single SR5. The invoice they sent had a lot of information missing. I posted it, but admin took it down because people complained that it was fake...