i'd also like to add the following:
when i owned a diesel car, cost for a gallon of diesel was $1.09, while gas was almost double that. 48mpg at that price was beautiful. it had always been explained that diesel was less costly to manufacture, it was a less refined, more "dirty" fuel, which was why diesel engines require such different parameters to operate than gas engines, hence the price. about 6 months after i sold the car, the price of diesel went through the roof, costing much more than regular gas. i believe this happened at a time when operating a diesel vehicle was becoming more popular, as vw was eventually intoducing the "tdi" to america, and european diesel cars were becoming a more prevelant part of the us market. after diesel prices went up, companies using diesel vehicles for fleet service demanded justification, and things like ups and fedex, and other shipping companies going out of business became a very stark reality. it was then explained that diesel was now costing more to produce. i think the fuel companies saw an inevitable decline in revenue with diesel becoming more popular with the general public. to further this point, when cold weather would knock on the doorstep, gas prices would go up, being explained that "winter grade gas" was more expensive to produce. but in the warm weather, when prices continued to rise, it was explained that the summer grade gas was more expensive to produce. doesn't anyone remember the multiple billion dollar profits oil companies were posting at that time? the end cost to the consumer didn't match the price of crude. we all know how capitalism and politics work together... and this is not a debate over "republican and democrat"... perhaps hydrogen assisted performance will become standard over the next ten years... but i don't want to wait that long for some "oil company bribed, us auto engineer" to dictate when that will be...
emerging technology from small indedpendent organizations is always worth unbiased consideration... look at the current space program... while nasa did a good job of getting the ball rolling, having (only) government run programs mandate how much money, time, and resources it takes to do something, is a slap in the face for the average, small time entrepreneur. it was just a matter of time before someone was allowed to prove everyone wrong. i've worked government jobs, and i've seen firsthand the amout of waste that is considered acceptable by our government.
i'm out of breath... for now!