superexpress

plural superexpresses

1. A very fast express train.

   Then the Tokyo-Osaka running time will be cut to three hours for superexpresses and four hours for the limited trains.

   1965, US news and world report, volume 58, page 69

   1 more example

   This is just south of where the central control station would probably be located and might require a slight slowing under the 120 miles per hour normal speed of the nonstop airport superexpresses.

   1963, United States. Congress. House. Committee on the District of Columbia, Transit program for the National Capital region, page 442