Less gas, more ass

Why do people think cars will save the world? In the past month, there has been news that the Smart car will be coming out locally, that India is planning to release a small $2.5k car, and that a presidential candidate has promised to revive the domestic automotive industry. Yeah, just what we need: more cars. It's good that the smart car and the new car in India will be more fuel efficient than a lot of the vehicles on the road, but really, how much of an effect will good fuel efficiency have when, in India's case, there are that many more cars on the road? I know that where I live, if people were willing to give up their SUVs and trucks--which at first glance while riding my bike (and avoiding getting hit) seem to make up at least 2/5ths of the vehicles on the road--then there would be a definitive impact on air quality. We're talking about a jump to 40mpg city up from -5--I kid, of course. The number of people who'd drive the Smart car over SUVs won't be that large, though, since they'd only be the people who can actually afford having two vehicles (though I'd be curious to know how many people who own SUVs have another vehicle) unless they trade in their current vehicles towards a Smart Car, and on top of that the cost is prohibitive ($28k was it?).

On the more socially and globally responsible note, Planetizen makes a good point about people like me commenting on developments in "developing" countries:

Of course there is deep hypocrisy in developed countries criticizing the driving habits of the developing world. Developed countries’ environmental critiques and campaigns need to start at home. Politicians, labor unions and environmental activists have a responsibility not to brandish global warming as a stick to bash workers and consumers in India or China. Instead the argument for progressive global warming policy must begin with the acknowledgment of the destructive policies of our home governments and corporations; this includes taking responsibility for developed countries majority contribution to the climate crisis.

Or you could go the route of AFS Trinity and get 150mpg (and potentially unlimited). According to the Salon article I heard about the company from, it does it with technology that's available to us now (and was available years ago):

Instead of waiting for a battery that can deliver both energy and power cheaply, it uses current lithium-ion batteries for energy, and then adds something called an ultracapacitor for rapid discharge during acceleration.

Ultracaps have 10 to 100 times the power density of typical batteries, but only one-tenth the energy density, so this is a marriage made in heaven, or at least Silicon Valley. The ultracap is the electrical equivalent of the shaken champagne bottle -- although even that analogy is flawed since ultracaps do not just discharge quickly, they also charge quickly. That's another benefit that ultracaps bring to hybrids.

Regular hybrids get much of their efficiency gains from their ability to capture the energy normally lost during braking and convert it to electricity. Current hybrid batteries take up only about half of this electricity, but fast-acting ultracaps can take up much more.