Similar to the LightShip 1, tongue-pull, RV travel trailer, the top-shelf Pebble Flow is offering 100% mpg-e for any tow vehicle pulling it; gas, diesel, hybrid, PHEV, or BEV.
And those cursed with perspicacity will 'see' other 'opportunities' not immediately obvious to pedants.
These 'new' RVs are definitely 'disruptive' technologies, and I await all the F.U.D., propaganda, and industry push back from those who get a paycheck from legacy RV manufacturers.
Pony-Express competing with fiber-optics.