hybrid as a toad/generator and power pack.

You will see that is a very old article. "Making your own electricity" with an internal combustion engine is a losing proposition. You quickly find out how inefficient they are (why that idea never took off). The idea does have merit if you could use the battery power when not able to plug in and recharge when you could. Workhorse is supposedly getting ready to market a extended range electric pickup truck with 120VAC outlets. If that were towable, it would probably be a viable candidate for a power-supplying toad. They do seem to be having trouble delivering on the promise, though.