The VIEWLINER was the earth-bound predecessor of Disneyland's Monorail, existing for only a year and a half, from 1957 to 1958. Billed as "the fastest miniature trains in the world," the salmon-colored Tomorrowland train and the blue Fantasyland train ran a figure-8 through the two lands on narrow gauge tracks.
Bob Gurr's concept sketch, 1956
Imagineer Bob Gurr patterned the sleek aluminum sides and big open windows after General Motors' Train of Tomorrow and the Aerotrain - in classic fifties future style. Powered by gasoline, courtesy of a Chevy Corvette V-8 Engine, the cab was practically built from old automobile parts, complete with a steering wheel, stick shift, and a reverse gear!
GM's Aerotrain, 1955
The single best place for information on the Viewliner and the Aerotrain can be found at the fascinating "Viewliner LTD" blog.