n a quiet, nondescript building off an interstate in Wilmington, Delaware, the future of America’s high-speed rail is taking shape. Amtrak gave select journalists, including TPG, a chance to tour full-scale mock-ups of the interior of its new high-speed Acela train cars, giving a sneak peek at what passengers will experience when the first cars are rolled out in spring 2021. American’s primary passenger train operator launched the Acela trains in 2000, and this is the first time since then that they are getting a new look and feel. While Amtrak’s Acela fleet currently lags behind high-speed trains in Europe...