The much-anticipated NextGen Acela trains will feature upgraded seats, high-speed Wi-Fi, and new dining options. Here's how to get tickets.

The “NextGen Acela” is a key part of Amtrak’s plan to broadly modernize its fleet. This plan also includes the new “Amtrak Airo” trains to come to routes along the East Coast, more efficient long distance traveling and upgraded train interiors.

The first five of Amtrak’s long-awaited, Alstom-built higher-speed trainset, the “NextGen Acela” (but also called “Acela II,” “America’s high-speed train,” and “Avelia Liberty” by the builder), are se