Really it's 3,771km/l, the microjoule from France. http://www.shell.com/home/content/eco-marathon-en/europe/news_and_library/2009/press_2009_09.html It doesn't have the most comfortable driving position though!

That's more along the lines of what I was thinking. It's even got a viewing window!Looks more like a coffin on wheels. If this thing were on the roads then that's exactly what it'd be, lol.