This sounds crazy at first, but yeah it would help get some people over the EV hump. One issue is the safety risk of having a big gas tank attached to the trail

This sounds crazy at first, but yeah it would help get some people over the EV hump. One issue is the safety risk of having a big gas tank attached to the trailer-mounted generator, which would be much less shielded than a typical gas tank. But I'm sure there are ways this could be mitigated. They'd also have to create battery systems that are meant to be discharged/charged simultaneously, which presumably current EVs are not meant to do.