
I found these photos before, but never could find the top one to make them a pair in a post, because in the top photo, you can't tell that there is a sidecar, and I didn't know it was a BMW
Top photo from http://motorcycle-74.blogspot.com
all public car photos
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180 photo gallery of the intake and engine going together here: http://www.flickr.com/photos/learaviator/sets/72157623774941005
Above image from Big Lorry Blog, where there are a couple more photos and the info that one is restored and at Ft Yuma Arizona http://www.roadtransport.com/blogs/big-lorry-blog/2010/10/more-le-tourneau-overland-trai.html#more
In the 1950s the LeTourneau company developed several overland trains, essentially oversized semi-trailer trucks that could travel over almost any terrain. Their intention was to be able to handle logistics needs without being dependent on local road or rail systems, allowing them to operate in back-country areas.


six-wheeled TC-497 Overland Train MkII used four Solar gas-turbine engines (at 1,170hp each, that’s 4,680hp total) to spin generators that delivered juice to 54 total motors – one for each of its wheels. Of its 12 trailers, two were dedicated just to carrying the turbines and generators. The Overland Train stretched 572 feet long, easily making it the world’s longest vehicle. Funny enough, it could only carry 150 tons of freight – as much as the Sno-Freighter – though it carried such developments as steerable trailer wheels that allowed the entire train more maneuverability. 
from Caradisiac http://www.forum-auto.com/automobiles-mythiques-exception/section5/sujet225087-3780.htm