The idea behind the "Kingdom" site is that Priuses are special creatures that have evolved to survive and create a legacy. They're so special, in fact, that we should happily rejoice whenever we see one. The fuel-saving message is present, too, as the voiceover says a one point, "Hurry! It could be many weeks before it drinks again." You can see Toyota's "Kingdom" video after the jump and visit the site here.
Other recent Prius ads include the People Person one, a bit of Harmony and a Vishnu touch. Talk about evolution.