It was to show the world, once and for all, that communism wasn't better than capitalism.
For that you need a big hairy audacious goal. Better millage isn't one. Cutting the arabs out of the oil deal, saving humanity as we gather the resources needed for a final jump into our future as a spacefaring species -- that is a goal worth of us.
I understand and it achieved its purpose (yay freedom) but now is different. Freedom has won, commies are laughed at, though mildly problematic, and the planet is one, sort of. The problems we face are less epic which makes them seem dull and we should be thankful for that.
China isn't going to attack us, they make far more money trading with us.
The arabs on the other hand.
But wait, bicycles are more fuel-efficient than even the best cars -- that should imply that the Chinese will want to use them instead, right? Because the problem is as simple as discovering greater fuel efficiency?
Or is this the bizarro world you mocked where higher fuel efficiency is bad?
Yes, the point I made from the beginning, except that I added that such a policy would make the contest for the supercar superfluous -- it would eliminate all the marginal uses of energy (i.e. where the benefit doesn't exceed the cost + tax) in the first place!
One step above copy-paste is analysis, and one step above that is understanding.
Love your work YodaBot!