Yeah, I'm right with ya on the modern LPG cars... been barking (begging) up that tree for a long time! Same with the modern jumbo plastic pellet cars. And you have to wonder why there are no accurate 86' A/P boxes available.
My $$$ is on Atlas for the LPG's, and there is some speculation that Atlas may soon announce a big plastic pellet car (based on a tease in a magazine ad), and Atlas again for the 86' A/P car. IM could also pull these off very nicely. Athearn too... still puzzled by the Ethanol tanker, though I guess they thought they'd lock up this growing source of traffic.
Autos, auto parts, LPG, plastic pellets... lots of this traffic moves through southern Ontario (my area of interest).
