Jeff Kash has the best website with links to 2004 Prius information, pictures, reviews, awards, hybrid technology, etc. He keeps adding to the site, making it, in my opinion, the primary resource for finding much of the web-based information. Here's the URL: http://home.earthlink.net/%7Ejkash1/ David Philadelphia area Driftwood AM (#7)
Here's another I've found useful, although the Yahoo forums are not as well organized in content as PriusChat and PriusOnline. http://autos.groups.yahoo.com/group/Prius-2G/ Even though this is titled "2005" the '04 and '05 are virtually identical: http://autos.groups.yahoo.com/group/2005_Prius/ Then there's always: http://john1701a.com/ John covers all the way from the Classic (2203 and prior) to current and contains a very good "User Manual" in more or less plain English.
