Japan’s new “Hayabusa” bullet train can travel at up to 186mph and features a luxury business class carriage. Japan Railway plans to push the speed past 200mph in the near future, making it the fastest train in Japan. The Tōkaidō Shinkansen is the world’s busiest high-speed rail line. Carrying over 151 million passengers a year, it has transported more passengers than any other high speed line in the world. ( over 4 billion people! ) Check out the debut spot here.