You are very right about Detroit completely reinvigorating it self with a manufacturer(s) that pursue these avenues of potential...but far and away the most logical and pragmatic seems to be Bio-Diesel...
Let's not forget that Volkswagen and Mercedes and a slew of other European auto. manufacturers have been on the ball with Diesel refinemnent, and especially quick-accelerating "Turbo Diesel" engines. I think Detroit is a little scared to step into this realm, because they feel they will be "2nd Rate" initially in regards to the quality and manufacturing infrastructure that Europe has already in place for diesels...So they feel that if they throw a lot of money into that area and promote Bio-Diesel...THen the people that they appeal to with the idea will go out and buy an already reputable "Diesel" manufacturer with a good track record (VW, Mercedes, etc.)...then again Chrysler and Mercedes are one in the same... so maybe there are flaws in my theory...but there is much more to it than the manufacturing standpoint.....
Anyway...to read about the ease of use and total overall benefits of using Bio-Diesel, and to see it in action (lots of people already use it, even brew it themselves, is mind blowing!)
But think about this the most
The single best source for Biodiesel is ALGAE! It is often over 50% oil content by volume. The oil acts in the same way that oils from other typical Bio-D crops like rapeseed, soy, peanut, hemp, etc...But Algae contains often 2 to 3 times more Oil then even those by volume!...It is easy to grow nearly anywhere in America (especially Desert climates, and can also act as A filter for Nitrous Oxide spounting power plants by simply venting the exhaust into sitting water "pools" that grow the algae.. this supply of "pollution" then becomes a catalyst for Hyper-Growth of Algae!
IF you want the full skinny on Algae and its potential (and have a little while to read) check out this article
http://www.biodieselamerica.org/site/downloads/articles/Biodiesel%20from%20Algae.pdfBesides Europe many other countries are moving ahead of us on this, and we are going to be left making the "Yugo's" of diesels here if we don't get with it soon....even Brazil puts more emphasis on this area (and CHINA too)... I know GW likes to make mention of Bio-D (& other alternatives) when he gives his little cheerleader routines...but he doesn't put a simple concise plan on the table..and when something is based on something as basic as algae and seeds, it surely cannot be all that difficult! (My math says Federally...$250 billion over 5-8 years, and we will be set for a LONG LONG TIME!) ($5 billion per US state to develop accelerated growth algae pools at colleges and universities throughout the country) THEN THE FUEL COMPANIES BUY IT FROM THE SCHOOLS WHOLESALE FOR WHO KNOWS $. 75 -$1.00 A GALLON!.....
ps...dont get me wrong hybrid electric, hydogen, etc based manufacturing development is needed also, but none of those options are as Pragmatic and easy of a shift overall than a Large-Scale shift to Diesel/Biodiesel....
Hey and don't forget...a shift to Bio-Diesel does one main thing (It does not interrupt trade, and really how do u think prices on the shelves would be affected for everything else if truckers/shippers have steady, cheap diesel supply?
Pave the way for the future now...it is simple...just demand it! and in the case of Biodiesel ...heck, grow your own if they don't listen!