It was built by Marshal Sanders of Highland, Michigan in the late 1960s out of a bunch of other vehicles. It’s powered by a 1966 Olds Tornado engine with front wheel drive. The front of the motorhome is from a GMC truck. The grill and front bumper is from a Pontiac. In back, the taillights are from a 1959 Ford.
Marshal had a big problem when he first drove the motorhome: when he turned the steering wheel left, the RV went right. Not good. But it was not a problem that couldn’t be solved, which Marshal did with a bellcrank.
GMC had the same problem when it was developing its motorhomes. To figure out what to do, GMC representatives visited Marshal to see his solution. They liked it so much they copied it for their own RVs.