An example of a double decker is the Amtrak superliner. Even Cunard chose this approach when it ordered its third superliner, the "Aquitania". CGT also ordered a new superliner in 1929. A Bombardier Amtrak Superliner car is tall. The French Line began to plan its own superliner. The Superliner I coach weighs ; the Superliner II coach weighs . The Superliner I lounge weighs ; the Superliner II lounge weighs . Superliner assignments became permanent in the 1990s. As part of the Superliner II order, Bombardier built 47 "transition sleeper" or dormitory cars. The Superliner II cars incorporated these improvements into their design. Two prototype Superliner roomette modules were installed, displacing twelve seats. The first of 284 Superliner I cars began arriving from Pullman-Standard in 1978. From 1987-1989 Amtrak used Superliner and ex-ATSF Hi-Level coaches. The Superliner I cars were the last passenger cars built by Pullman. The Superliner I sleeping car weighs ; the Superliner II sleeping car weighs .