Way back in 1992, I had a brother selling RVs north of Dallas and I was in the area when he called to tell me he had a customer in Bristol, VA, wanting a particular discontinued model of motorhome and the factory had told the guy the dealership my brother worked for still had a new one in stock. So I delivered it (a thousand miles) for him. It actually was one of the cheaper diesel pushers with spring suspension instead of air, but had air brakes and it was a sweet driving rig. I got to give those air brakes a pretty good test in Knoxville, TN, when a car cut in front of me and then slammed on his brakes.
Incidentally, that motorhome was a new 33 foot Champion EuroPremier on a Spartan chassis with a 230 hp. 5.9 liter, Cummins pusher with a 5 speed Allison.