Running through this thread a year after it started, I feel compelled to reply. Dave and Tom had a nice exchange about the infrastructure needed vis-a-vis hydrogen, with Dave speculating that "hundreds of billions of dollars" would be needed. If I invented a car that ran on water, would we have to lay water lines all around the country to service them? NO! But if I invent one that runs on hydrogen, every intersection in town will be torn up to install the pipes to supply the stations/homes that use it. The natural gas lines are in place to serve over half the homes in the US.
If Wiki is right, there are 135 million cars in America. So if 10% could burn CNG, and the gov't provided FREE compressors for home refueling @ $3000 each, that would only cost $40 billion. That is if the recipient didn't contribute a dime. Currently there are tax incentives, but they are like mail-in rebates (spend your money now, get it back in April). If the gov't paid direct to the manufacturer, the est.$2000 vs.$3000 (pre-rebate) cost would be more palatable for the consumer.
Fully geared up, with absolutely no more R&D, Detroit could make any model CNG capable for, ummm, $3000 more (wild a-- guess).The tanks are expensive, but it's amazing the discount you get when you place a firm order for 200 million tanks.
Just checking, the Civic Si sedan lists @ 22k, the hybrid @ 23.6k, and the NGV @ 25.1k. So $3000 more than the Si gets you CNG. I suspect the hybrid is still losing money for Honda, but the Cng model only would only lose money because it is a limited run (not R&D or advertising it's green/politically correct while non-viable commercially).
(Off on a tangent here).
Lead for batteries is mined in Canada, refined in Europe, prepared in some forsaken place in India or Cambodia, and made into batteries in Japan/Tawian, then shipped to you new home in (Canada). Can you think of ANYTHING less efficient than shippin tons of lead ALL the way around the world????
Back to rant...
Boykin530 sums it up nicely, Natural Gas is domestic and plentiful. It's not the total answer for all eternity, but will give us much more time to figure out the meaning of life and transportation. And if he can get a new 2010 Camaro with a 100 mile range (pedal to the metal), he'll buy one!
Full disclosure. I have a 2000 ford contour bi-fuel factory job, and a 1997 ford aerostar conversion. Gasoline last year hit $3.80 and cng was $1 in oklahoma. These suckers are paying for themselves! But the $3000 for an inhome refueling station is daunting, so my peeve is I can't get one yet.