Mr Leno's electrics, along with his skepticism, were featured in a recent US-PBS Nova show.
For Victorian history, an interesting point was that the automobile, and the internal combustion engine,was seen as an environmental step. I assumed the main interest would be the elimination of horse droppings, 'road apples', which was indeed a large problem.
However, an even bigger problem was the period's disdain of animal welfare. We now think of ASPCA for cats and dogs, near the turn of the previous century, it was the treatment of horses that was decried. They would be worked, often pulling impossible large and heavy loads, until they dropped in their traces. Then the owner would unhitch, find another horse, and leave the carcass.
In New York, the sanitation department was finding the clearing of such bodies almost impossible to handle.
I've oft thought that the city vignettes we see on the forum would have considerable verisimilitude added with the inclusion of a rotting horse on the street.
A bit off topic for the thread, less so for the forum.
As for Leno's opinions, I'm a bit less convinced about the death of electric.
Doug