Japan’s prime minister rides in it (http://www.youtube.com/watch?v=IEPdvl3OFk0) U.K. promises to have some on the road by 2017 (http://www.youtube.com/watch?v=KGIsvLpdF-g) Toyota will be on the road with it by the ‘mid-2010s’ National Highway Traffic Safety Administration (NHTSA) attorney calls it “premature” Audi, BMW, Ford, Google, Honda, Mercedes, Nissan, Toyota, VW and and and trying to be ready…