There's a video out there where they (diffrent guys) compared the Ford Lightning to a gas vehicle (don't remember which). They actually had to go back and get the trailer from the lightning. If I remember, the gas truck went to the destination, dropped the trailer, went to the Ford, got theirs and dropped at the destination on the same tank of fuel. I think the reason was, the range on the Ford wasn't enough to make it to the next charging station towing the trailer.
The range Ford had advertised towing that amount of weight wasn't anywhere near what it actually did.