American Motors Company Buses? 1970s-1980s? - Trains Magazine

This is a railroad forum and not a bus platform.  Nevertheless, I do know some things about your inquiry.

The government’s efforts at promoting a miracle “Transbus” was a total flop, with nobody bidding to make them.

GMC (with its then new RTS), Grumman (with its new 870), and AM General with its old offering were the only real transit bus manufactures.  Gillig got into the fray, and I suppose a few others.  Most figured the lowest bidder wasn’t profitable, and exited the industry.  But, that was all decades ago, and I lost awareness of transit happenings, so can’t help you further.

I suppose there are bus fans here at the forum, as some railfans that like airplanes too, and murder mysteries as well.  But, each has its place for open discussions …

----------------------------------------------------------------------------------------------------------------------------------- K.P.’s absolute “theorem” from early, early childhood that he has seen over and over and over again: Those that CAUSE a problem in the first place will act the most violently if questioned or exposed.