The original train had ten cars, which would be hard to do in Lego (and it's kinda pointless as 9 of then are identical) I have five cars on my train, four identical coaches and one observation coach on the end. My Inspiration for this model came from this Brickshelf account here: www.brickshelf.com/cgi-bin/gallery.cgi?f=497396 and I give 99% of the credit for the model to Brickshelf user enquete-art. The other 1% comes from me, such as the reworked wheels, front and back windshields, window SNOT work and red number tile.
(sorry for the blurry picture)
The wheels have been updated since the last version from 2015, as I finally got enough gray wheel-sets!
This is the tail end of the train.
The experimental Aerotrain was built by General Motors using ten hard riding bus bodies (per train) for coaches, a new, untested (and quite complicated) air cushion suspension system, and an under-powered motor originally made for switching locomotives. Needless to say, it failed to entice people back into their cars, and the two trains were 98% scrapped in 1966, after less than a decade of service. One locomotive & two cars were sold to the National Railroad Museum in Green Bay, Wisconsin, while the other locomotive and another two cars were sold to The Museum of Transportation in St. Louis, Missouri.