As a relatively pragmatic person who generally chooses the imperfect-yet-achievable path rather than agonizing over the perfect-but-unattainable goal, this chart [from a fascinating Boston Consulting report, in PDF here] frustrates me. I understand why Americans choose hybrid-electric cars as their most favored “green car” technology, but from their it gets fairly crazy. EVs are fantastic on paper, but in the real world they’re still far too expensive, their batteries degrade, they have limited range, oh and did I mention that they’re freaking expensive? Biofuels, America’s third-favorite “green” transportation technology can be fantastic in certain limited applications, but the ongoing ethanol boondoggle proves that it will never be a true “gasoline alternative.” Finally, at the bottom of the list, Americans grudgingly accept only relatively slight interest in the two most promising short-term technologies: diesel and CNG. Neither of these choices is radically more expensive than, say, a hybrid drivetrain and both are considerably less expensive and compromised than EVs at this point. So why are we so dismissive of them?