Re:Check out the TDI Volkswagons!! (Score 2, Informative)

Quick note on a 4cyn Jetta TDI a friend has:
He has a manual, and tends to over fill his tires on long road trips - not wise nor safe, but it adds to your MPG count - he claims he gets about 70 MPG on the freeways in ND.
Also, there are a lot of E85 engines out there now... they can take standard gasoline and Corn fuel. The filling stations are rare, but the corn fuel is about 105 octain, and you need no modifications to switch between the two fuels. There are over 70 E85 gas stations in MN where I live, and they are trying to spread them elsewhere too.

Here are some links for you to look at:
http://www.al-corn.com/faq/e85.asp
http://ww w.exolmn.com/e-85information.htm
http://www.motor trend.com/features/news/112_news03 0226_fuel/index1.html

Also here is a link to a search by the U.S. DoE by auto type:
http://www.ccities.doe.gov/vbg/progs/search _class. cgi