Originally Posted by MikeJ

It seems the overall economy of alternative fuels is, at the moment, much worse than that of the traditional ones (diesel being a traditional one). There was an overview of alternative fuels in a magazine, and they came to the conclusion that the alternative fuels we have now make more sense if used in electricity/heat production which can be done in less refined form than would be required in order for them to be used to power cars. Of course, one day oil will probably run out and we will be forced to use the alternatives.

I suppose Matt's question is about the American market - in Europe diesel cars will make up for more than 50% of overall sales in 2006.