Wired Magazine has a review of many motorcycle or motorcycle derivative products that all promise to be clean. Considering that even normal motorbikes get better MPG than any car, it seems to make sense. They also don't have to meet the safety standards that make modern cars heavy, and therefore less efficient. (I'm not saying safety is bad, but there is a correlation between safety/weight/cost. )

It's interesting to see things like the very car like Apterra get classed as Motorcycles due to being 3 wheelers. This allows them to have to deal with less regulations.

Perhaps a new class of vehicle is deserved? A lightweight, efficiency class, with different safety standards. Allow me, like a motorcycle driver, to chose my trade offs.

Wired Magazine