Just posted a TV news video on Jimmy Klein in ADW Green. The odd thing is that I can't find anything more about this guy, and whether his water-fueled converted car really did get taken up in Washington DC and by an interested automaker. One story says that his name is actually Denny Klein, and perhaps they're correct. A blog entry says that he died.
So which one is accurate? If you know, let me know. But watch the video in ADW Green - it's good stuff in the American tradition of inventors of light bulbs and all sorts of cool stuff.