But really, why is the solution to any problem always 'IMPOSE MORE TAXES'??? "
Because they don't pay fuel taxes to the same extent as dino-powered cars, and those fuel taxes are a major source of funding for highway maintenance. And they cause more road wear than conventional autos because their "fuel tank" weighs nigh on to a thousand pounds regardless whether it's full or empty. Storage battery-powered electric cars are inordinately heavy beasts.
So not charging storage battery-only and hybrid electrical vehicles a graduated road use tax amounts to (once again) subsidizing their use over dino-powered autos.
Fair enough, thanks!