micro
...it went up a hill slowly and is smaller than the coffin you will be buried in if ya happen to bump into something substantial for example a discarded biscuit from Kentucky fried chicken. Neither of these "attributes" speaks to the issue I thought we was discussing which was whether or not it is economically feasible to run a car on compressed air.
I did have an uncle once who thought ya could have a fan on yer sailboat to power it iffen the wind quit on ya. Looks like this thing might work on the same theory.
Liberals are like a "Slinky". Totally useless, but somehow ya can't help but smile when you see one tumble down a flight of stairs!